题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115532-62463.png)
A.![]() | B.(0,3) | C.(1,4) | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115533-71522.png)
故函数的增区间为D
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115524-23075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115524-62714.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115513-72804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115513-83943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115513-80020.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115513-36189.png)
(2)若当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115513-43653.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115514-21927.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115514-15256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115514-92745.png)
(3)是否存在实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115514-87719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115514-47930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115515-10583.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115514-87719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115501-41726.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115501-76823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115447-15349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115447-45296.png)
x=a处的导数,a为正常数.
(1)求g(x)的单调区间;
(2)对任意的正实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115447-80798.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115447-91148.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115447-45245.png)
(3)对任意的
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115448-59657.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115433-23607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115434-23811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115434-82275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115434-35416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115434-54400.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115435-95628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115435-12963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115435-65498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018115435-12321.png)
A.1 | B.2 | C.3 | D.4 |
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