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【331171】9.2.2.3 分式的混合运算

时间:2025-01-21 13:44:12 作者: 字数:497字
简介:

9.2.2.3 分式的混合运算

  1. 填空题:

1. x=6y=3时,代数式( <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> )• <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的值是 .

2.化简 <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的结果是________ <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ___.

3. <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,M=__ <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> _________.

4.计算 <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> = .

二、简答:

5.已知 <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> .试说明不论x为何值,y的值不变.








  1.  <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 化简 <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 再选择一个恰当的x值代入并求 <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 值.












7.先化简,再求值

 <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>÷ <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>  <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 其中 <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>   <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/45/" title="混合" class="c1" target="_blank">混合</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>