题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022932-30674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022932-50111.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022932-21907.png)
答案
解析
试题分析:设切点
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022932-98075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022933-87790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022933-10141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022933-66830.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022932-30674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022932-50111.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022933-66830.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022933-96825.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022933-83066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022934-64570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022934-66364.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022934-25315.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022927-81944.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022928-96267.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022922-16712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022923-34780.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022923-47748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022923-17363.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022923-99148.png)
A.必为正数 | B.必为负数 | C.必为非负 | D.必为非正 |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022913-86493.png)
(1)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022913-71590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022913-88268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022914-70372.png)
(2)若对任意的
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022914-17264.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022914-96217.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022914-61997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022915-31088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-39778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-65740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-28806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-59520.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-86060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-86060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-10678.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022905-25616.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022858-77645.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022859-41647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018022859-26644.png)
A.-3或4 | B.4 | C.-3 | D.3或 4 |
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