题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-62687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-93396.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-31719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-59766.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-30891.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-57228.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:由已知有
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050125-17103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050125-34610.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050125-95605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050125-66620.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050126-87084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050126-65579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050126-59818.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-57228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050124-50304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050126-87616.jpg)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050119-50105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050119-85621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050120-75476.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050120-66449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050113-32691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050114-81053.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050114-41282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050114-83075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050114-92092.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050114-31232.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050107-85515.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050108-55082.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050108-94291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050108-49594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050108-56752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050108-81484.png)
A.最小值2 | B.最小值3 | C.最大值![]() | D.最大值![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050102-62721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050102-99151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050102-76822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050102-68124.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050056-27718.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050056-69837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050056-73394.png)
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