题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071036-91915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071036-97636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071036-38664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071036-37942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071037-99945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071037-64351.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071037-30424.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071038-67101.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071038-37588.png)
解析
试题分析:由命题p知
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071038-64765.png)
由命题q知,当
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071037-99945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071037-64351.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071038-77825.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071037-30424.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071038-67101.png)
.
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071039-41262.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071039-13723.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071039-71116.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071039-51801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071040-59595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071040-42441.png)
综上可知,c的取值范围为
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071038-37588.png)
点评:解决此类问题的方法是先假设简单命题为真时求出参数的范围然后根据复合命题的真假得出结论,最后用集合的知识取交集取并集.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071032-25354.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071028-59914.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071024-93688.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071024-96123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071024-80744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071017-94155.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071017-44123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071017-96702.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071017-71876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071017-65622.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071010-98438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071010-63006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103071011-19784.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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