题目
题型:填空题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040059-27340.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040100-78522.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040100-26811.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040100-64550.png)
解析
试题分析:这类问题首先是通过导数研究函数的单调性,
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040100-54686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040100-36921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040101-85832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040101-34467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040101-40945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040101-79800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040101-39290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040102-77191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040102-22461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040102-23260.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040056-76190.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040056-25635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040056-61495.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040051-60972.png)
(I)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040051-14343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040051-77229.png)
(II)若对任意的
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040052-58788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040052-22849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040051-77229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-23331.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-42212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-88637.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-28731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040041-28638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040041-22412.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-42212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040041-48997.png)
(1)已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-42212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040041-72466.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040041-57238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040042-22804.png)
(2)已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-42212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040041-72466.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040042-23142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040042-59980.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040042-85928.png)
(3)已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-42212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040041-48997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040042-77746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-42212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040043-45785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040040-42212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040043-48408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040043-55014.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040035-11647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040035-54376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040035-49303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040036-66169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040036-28671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040035-11647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040036-84997.png)
①函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040036-21516.png)
②指数函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040036-94449.png)
③若
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040035-11647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040035-49303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040037-58765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040037-13522.png)
④在定义域上具有单调性的函数一定是单函数;
其中的真命题是________.(写出所有真命题的编号)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040025-58028.png)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040025-56264.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040026-54352.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040025-56264.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040026-18452.png)
(3)若对任何
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040026-81812.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040026-28198.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818040026-10678.png)
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