题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114223-67734.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114224-22853.png)
解析
试题分析:解不等式
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114223-67734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114224-91744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114224-10005.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114223-67734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114224-22853.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114215-13387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114216-99502.png)
(1)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114216-89930.png)
(2)比较
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114216-43967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114216-40469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114203-91681.png)
(1)当a=1时,解不等式
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114204-49727.png)
(2)若存在
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114204-73059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114158-60527.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114159-71697.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015114146-11429.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
A.![]() |
B.![]() |
C.当![]() ![]() ![]() ![]() |
D.![]() |
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