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【332343】2.3 用计算器求锐角三角比 专项练习

时间:2025-01-21 12:38:40 作者: 字数:647字
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《用计算器求锐角三角函数》解答题


1.用计算器求下列锐角三角函数值:

 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a>


2.用计算器求下列锐角三角函数值:

 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a>


3.用计算器求下列锐角三角函数值:

 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a>


4.已知 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a> 为锐角,根据下列锐角三角函数值,求其相应的锐角A

 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a>


5.用计算器求下列余切值:

 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a>


6.已知 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a> ,用计算器求锐角A








参考答案

1. 0.342020.939693; 0.726543.

2. 0.267799; 0.652098; 44.6363.

3. 0.280784 ; 0.841901; 0.19866.

4.  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a> ;  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a> ;  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a> .

5. 1.6003 ; 0.338481 ; 2.83309.

6.  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/179/" title="锐角" class="c1" target="_blank">锐角</a> <a href="/tags/920/" title="三角" class="c1" target="_blank">三角</a> .