题目
题型:不详难度:来源:
已知p:
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070017-48773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070018-10601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070018-89943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070018-26114.png)
答案
解析
试题分析:∵
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070017-48773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070018-10601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070018-89943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070018-26114.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070019-93803.png)
点评:典型题,本题具有较强的综合性,通过解不等式明确命题对应的集合,是解题的关键一步。判断充要条件,可利用定义法、等价命题法、集合关系法。本题采用的是集合关系法。
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070013-97376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070013-46621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070013-42865.png)
A.![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() ![]() |
(1)平面向量
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070006-14208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070006-63398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070006-62999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070007-58549.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070007-93252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070007-40336.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070008-40134.png)
(2)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070008-80338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070008-46790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070009-68448.png)
(3)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070009-51640.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070009-90880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070009-19957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070010-83164.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070010-82865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070009-90880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065957-55640.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065957-56482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065957-38459.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065953-34107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065953-15397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065953-37367.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065947-52447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065947-37543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103065947-63725.png)
A.充分非必要条件 | B.必要非充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
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