题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053730-43299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053730-52133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053730-14218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053730-36883.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053730-75193.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053731-96430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053731-11390.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053731-65513.png)
A.最小值-5 | B.最大值-5 | C.最小值-1 | D.最大值-3 |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053731-20155.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053731-67940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053731-50709.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053732-56296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053732-56296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053732-48248.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053732-43177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053732-48248.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053727-42320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053727-19754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053727-51796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053727-28676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053728-43919.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053728-75044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-70471.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-76661.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-98700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-98700.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-98700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-57799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-86046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053721-44634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053722-15111.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053713-23448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053713-32037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053713-84792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053713-35902.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053713-23448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053713-32037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053714-25554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053707-50509.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053707-41421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053707-15794.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053707-85839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053708-62960.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053704-47299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818053704-89972.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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