题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055052-39207.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-16861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055052-39207.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-53087.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-53087.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-74961.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-37535.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-72105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-53087.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-17707.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-74961.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-86425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-16861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-28601.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-28601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-84700.png)
(Ⅱ)当
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-84700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055053-16861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-28601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-89904.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055055-92215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055055-79644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055055-78010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055055-84629.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055055-71085.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055056-81994.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055056-70472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055056-62429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055056-25891.png)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055056-65551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055057-36489.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055057-72130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055057-49691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055057-41762.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055058-42258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055058-17439.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055058-85888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055058-61397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055054-28601.png)
答:当
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055057-49691.png)
解析
核心考点
试题【某城市计划在如图所示的空地上竖一块长方形液晶广告屏幕,宣传该城市未来十年计划、目标等相关政策.已知四边形是边长为30米的正方形,电源在点处,点到边的距离分别为9】;主要考察你对函数的相关概念等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055032-75780.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055032-91539.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055033-50875.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055033-42325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055033-54052.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055033-85253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055033-11228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055003-32899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055004-77486.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205055004-91581.png)
A.![]() | B.![]() | C.![]() | D.![]() |
A.![]() | B.![]() |
C.![]() | D.![]() |
已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205054830-30297.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205054830-23203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205054756-22721.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
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