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【327849】2023年辽宁省抚顺市葫芦岛市中考数学真题

时间:2025-01-20 20:28:29 作者: 字数:20279字
简介:

绝密★启用前

202026-2023年辽宁省抚顺市、葫芦岛市中考数学真题


学校:___________姓名:___________班级:___________考号:___________


题号

总分

得分






注意事项:

1.答题前填写好自己的姓名、班级、考号等信息

2.请将答案正确填写在答题卡上


一、单选题

1.实数3的相反数是(      )

A3    B  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     C  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     D  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

2.下列图形中、既是轴对称图形又是中心对称图形的是(      )

A <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     B <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     C <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     D <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

3.下列运算正确的是(      )

A  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     B  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     C  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     D  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

4.下图是由5个完全相同的小正方体搭成的几何体,这个几何体的主视图是(      )

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

A <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     B <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

C <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     D <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

5.某校对部分参加夏令营的中学生的年龄进行统计,结果如下表:

年龄/

13

14

15

16

17

18

人数/

5

8

11

20

9

7

则这些学生年龄的众数是(      )

A13岁    B14岁    C15岁    D16

6.在一个不透明的袋子中装有6个白球和14个红球,这些球除颜色外无其他差别、随机从袋子中摸出一个球,则摸到白球的概率为(      )

A  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     B  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     C  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     D  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

7.如图,直线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 被直线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 所截,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,则  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的度数为(      )

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     

A48°    B58°    C68°    D78°

8 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 九章算术  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是我国古代重要的数学专著之一,其中记录的一道题译为白话文是,把一份文件用慢马送到  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 里外的城市,需要的时间比规定时间多一天;如果用快马送,所需的时间比规定时间少  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 天.已知快马的速度是慢马的  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 倍,求规定时间.设规定时间为  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 天,则可列方程为(      )

A  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

B  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

C  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

D  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

9.如图,在  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 中,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,按以下步骤作图:分别以点A和点B为圆心,大于  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 长为半径作弧,两弧相交于EF两点;作直线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点M,交  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点N.连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> .则  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的长为(      )

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

A  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     B  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     C  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     D  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

10.如图,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,在射线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 上分别截取  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的平分线交  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点D,点E为线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 上的动点,作  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点F,作  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 交射线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点G,过点G  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点H,点E沿  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 方向运动,当点E与点B重合时停止运动.设点E运动的路程为x,四边形  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 重叠部分的面积为S,则能大致反映Sx之间函数关系的图象是(      )

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

A <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     B <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

C <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     D <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

二、填空题

11.要使得式子  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 有意义,则a的取值范围是              

12.分解因式:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>             

13.若关于x的一元二次方程  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 有两个不相等的实数根,则k的取值范围是        

14.某跳远队准备从甲、乙两名运动员中选取一名成绩稳定的参加比赛,这两名运动员10次测试成绩(单位:m)的平均数是  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,方差是  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,那么应选        去参加比赛.(填“甲”或“乙”)

15.如图,在  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 中,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,点D  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的中点,过点C  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的延长线于点E,若  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,则  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的长为    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

16.如图,在平面直角坐标系中,点A的坐标为  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,将线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 绕点A逆时针旋转  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,得到线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 恰好落在反比例函数  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> )的图象上,则  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的值是    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

17.如图,平行四边形  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的对角线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 相交于点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,过点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,交  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的延长线于点E,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,交  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,则四边形  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的面积与  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的面积的比值为        

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

18.如图,在矩形  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 中,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,点M  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的中点,E  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 上的一点,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,作点B关于直线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的对称点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 并延长交  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点F.当  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 最大时,点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的距离是        

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

三、解答题

19.先化简,再求值:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,其中  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

20.为了推进“优秀传统文化进校园”活动,学校准备在七年级成立四个课外活动小组,分别是:A.民族舞蹈组; B.经典诵读组;C.民族乐器组;D.地方戏曲组.为了了解学生最喜欢哪一个活动小组,学校从七年级全体学生中随机抽取部分学生进行问卷调查,每人必须选择且只能选择一项,并将调查结果绘制成如下两幅统计图.

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  

请根据图中提供的信息解答下列问题:

(1)本次调查的学生共有         人;

(2)在扇形统计图中,求 D  组所对应的扇形圆心角的度数,并补全条形统计图;

(3)在重阳节来临之际,学校计划组织学生到敬老院为老人表演节目,准备从这   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   个小组中随机抽取   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   个小组汇报演出,请你用列表法或画树状图法,求选中的   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   个小组恰好是 C D  小组的概率.

21.某超市销售甲、乙两种驱蚊手环,某天卖出3个甲种驱蚊手环和1个乙种驱蚊手环,收入128元;另一天,以同样的价格卖出1个甲种驱蚊手环和2个乙种驱蚊手环,收入76元.

(1)每个甲种驱蚊手环和每个乙种驱蚊手环的售价分别是多少元?

(2)某幼儿园欲购买甲、乙两种驱蚊手环共100个,总费用不超过2500元,那么最多可购买甲种驱蚊手环多少个?

22.小亮利用所学的知识对大厦的高度  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 进行测量,他在自家楼顶B处测得大厦底部的俯角是  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,测得大厦顶部的仰角是  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,已知他家楼顶B处距地面的高度  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 40米(图中点ABCD均在同一平面内).

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

(1)求两楼之间的距离  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (结果保留根号);

(2)求大厦的高度  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (结果取整数).

(参考数据:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

23.电商平台销售某款儿童组装玩具,进价为每件100元,在销售过程中发现,每周的销售量y(件)与每件玩具售价x(元)之间满足一次函数关系(其中  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,且x为整数).当每件玩具售价为120元时,每周的销量为80件;当每件玩具售价为140元时,每周的销量为40件.

(1)yx之间的函数关系式;

(2)当每件玩具售价为多少元时,电商平台每周销售这款玩具所获的利润最大?最大周利润是多少元?

24.如图,    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    内接于    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    ,    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    是    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    的直径,    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    平分    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    交    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    于点E,过点E作    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    ,交    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    的延长线于点F

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

(1)求证:    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    与    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    相切;

(2)若    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    ,    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    ,过点E作    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    于点M,交    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    于点G,交    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    于点N,求    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    的长.

25  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是等边三角形,点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是射线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 上的一点(不与点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 重合),连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,在  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的左侧作等边三角形  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,将线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 绕点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 逆时针旋转  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,得到线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> .交  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

(1)如图1,当点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 中点时,请直接写出线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的数量关系;

(2)如图2,当点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 在线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的延长线上时,请判断(  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> )中的结论是否成立?若成立,请写出证明过程;若不成立,请说明理由;

(3)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 时,请直接写出  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的长.

26.如图,抛物线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> x轴交于点A和点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,与y轴交于点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,点P为第一象限内抛物线上的动点,过点P  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 轴于点E,交  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点F

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

(1)求抛物线的解析式;

(2)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的周长是线段  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 长度的2倍时,求点P的坐标;

(3)当点P运动到抛物线顶点时,点Qy轴上的动点,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,过点B作直线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,连接  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 并延长交直线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点M.当  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 时,请直接写出点的坐标.

参考答案

一、单选题

1. D

解:3的相反数  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,故D正确,

D


2. B

解:选项A形,是轴对形,但不是中心形,故都不符合意;

选项B中的形,既是轴对形又是中心形,故符合意;

选项C中的形,是中心形,但不是轴对形,故不符合意;

选项D中的形,是轴对形,但不是中心形,故不符合.

B


3. B

解:A.   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,故该选项运算错误,不合意;

B.   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,故该选项运算正确,符合意;

C.   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 不是同类项,不能合并,故该选项运算错误,不合意;

D.   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,故该选项运算错误,不合.

B


4. C

解:从正面看可得第一列有1个正方形,第二列有2个正方形,第三列有1个正方形,如所示:

   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  

C


5. D

解:由表可知1620次,出次数最多,

所以众数16

D


6. C

解:恰好是白球的概率  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  

C


7. B

解:如  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

B.

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     


8. A

解:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 时间为  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 天,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 所需的时间为  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 天,快所需的时间为  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 天,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的速度是慢  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 倍,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 可列出方程  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

故此答案A


9. B

解:由作法可得 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 垂直平分 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

C  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点H  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是等腰直角三角形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> .

B


10. A

解: <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 边长为6的正三角形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 平分 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

当矩形 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 全部在 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 之中,即由12,此 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 中,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

3,当  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

23,此  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>     

4  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的交点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是正三角形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

矩形 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ;

6  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,由36,此  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

5,同理  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是正三角形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

梯形 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

因此三段函数的都是二次函数关系,其中第1段是开口向上,第2段、第3段是开口向下的抛物线.

A


二、填空题

11.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解:根据意得,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>


12.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> /  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> .

解: <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

=2m2-9

=2m+3)(m-3).

故答案2m+3)(m-3).


13.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解:关于x的方程  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 有两个不相等的数根,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

故答案  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>


14.

解:由意知, <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

因此甲的成比乙的成绩稳定,应选甲去参加比.

故答案甲.


15.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> D  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的中点,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  ≌ <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 中,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>


16.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  

由旋的性得,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

A的坐标为  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

由勾股定理得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的坐标为  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 恰好落在反比例函数  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 象上,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  


17.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解: <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是平行四形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是平行四形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

同理  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> .

故答案  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> .


18.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解:如,由意可得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 上,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

B关于直线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 称点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 切于点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 最大,此  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 重合,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

矩形  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的距离是  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

故答案  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>


三、解答题

19.  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

原式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>


20. (1)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (2)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,补全统计图见解析(3)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

1)解  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>      <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

故答案  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

2)解: D 对应的扇形心角的度数  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

选择 B 的人数  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (人),

全条形统计图如下 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   ;

3)解:用表示所有等可能出果如下

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

共有  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 种等可能出果,其中  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 个小恰好是 C D的有  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 种,

所以中的  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 个小恰好是 C D 的概率  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>


21. (1)3620(2)31

1)解:每个甲种蚊手的售价x元,每个乙种蚊手的售价是y元,

根据意得,   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,解得 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

答:每个甲种蚊手的售价是36元,每个乙种蚊手的售价是20元;

2)解:设购买甲种蚊手m个,则购买乙种蚊手  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 个,

根据意得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

m正整数,

m的最大值为31,

答:最多可购买甲种蚊手31.


22. (1)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (2)92

1)解:如,作  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点E  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  

意知  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

即两楼之的距离  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 米;

2)解:由意知  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是矩形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 中,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

即大厦的高度  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 92米.


23. (1)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (其中  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,且x为整数)(2)当每件玩具售价为130元时,电商平台每周销售这款玩具所获的利润最大,最大周利润是1800

1)解:yx的函数关系式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

由已知得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

因此yx的函数关系式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (其中  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,且x整数);

2)解:每周款玩具所的利润为W

意得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> W关于x的二次函数象开口向下,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,且x整数,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> W取最大,最大值为1800

即当每件玩具售价130商平台每周款玩具所的利最大,最大周利1800元.


24. (1)见解析(2)    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

1明:如    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    的直径,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    平分    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    于点E

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    的半径,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    相切;

2)解:如    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    是等三角形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    的直径,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>        <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    ,

    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    长为    <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>    


25. (1)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (2)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 仍然成立,理由见解析(3)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

1)解∶∵  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是等三角形,点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的中点,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是等三角形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

2)解:如1  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 仍然成立,理由如下  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是等三角形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

∴ ≌ <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 是平行四形,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

3)解:如  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,当点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的延长线,作  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,

由(  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> )知  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,当点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> ,作  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

由上知  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

上所述, <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>


26. (1)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (2)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (3)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

1)解:将  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 代入  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

可得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 抛物线的解析式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

2)解:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的周  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的周线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 度的2倍,

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的解析式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 代入可得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的解析式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> (舍),

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

3)解:  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> y取最大  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的解析式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> M  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 于点N

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

意知  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  ≌ <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的解析式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 线  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 的解析式  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

将点  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a> 代入,得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

解得  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>   <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/581/" title="葫芦" class="c1" target="_blank">葫芦</a> <a href="/tags/990/" title="辽宁省" class="c1" target="_blank">辽宁省</a> <a href="/tags/991/" title="葫芦岛" class="c1" target="_blank">葫芦岛</a> <a href="/tags/1125/" title="抚顺" class="c1" target="_blank">抚顺</a> <a href="/tags/1122/" title="辽宁" class="c1" target="_blank">辽宁</a>