【题文】.设集合,则下列关系中正确的是( )A.B.C.D.
【题文】.设集合,则下列关系中正确的是( )A.B.C.D.
题型:难度:来源:
【题文】.设集合
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105745-78535.png)
,则下列关系中正确的是( )
答案
【答案】B
解析
【解析】
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105746-69864.png)
举一反三
【题文】集合P=
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105742-18964.png)
,M=
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105742-61537.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105742-13572.png)
( )
A.{1,2} B.{0,1,2} C.{
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105742-37605.png)
【题文】集合P=
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105718-88399.png)
,M=
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105718-87528.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105718-29592.png)
( )
A.{1,2} B.{0,1,2} C.{
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105719-88459.png)
【题文】已知集合
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105652-61375.png)
,
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105652-19648.png)
;(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105652-13776.png)
,求实数
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105653-88513.png)
的取值范围.
【题文】已知集合
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105644-23161.png)
,
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105644-83199.png)
;(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105645-45824.png)
,求实数
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323105645-29489.png)
的取值范围.
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