题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015138-39792.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:对于A,
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015139-59550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015139-63440.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015139-60827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015140-30112.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015140-50794.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015140-81480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015140-24482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015138-93378.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015138-39792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015141-42664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015141-74799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015138-39792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015141-61142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015141-53699.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015139-63440.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015142-88199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015138-39792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015138-39792.png)
核心考点
举一反三
A.(-∞,0) | B.![]() |
C.(0,1) | D.(0,+∞) |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015123-43140.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015110-52312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015110-74235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015110-35587.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015110-44186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015111-97969.png)
(2)若方程
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015111-64686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015111-29147.png)
(3)若对
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015111-56073.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015111-63023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015111-29147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015103-22267.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015104-49426.png)
A.最大值为![]() | B.最大值为 |
C.最小值为![]() | D.最小值为![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015055-95981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019015055-57287.png)
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