【题文】.已知全集U={1,2,3,4},集合A={1,2},B={2,3},则?U(A∪B)=( )A.{1,3,4}, B.{3,
题型:难度:来源:
【题文】.已知全集U={1,2,3,4},集合A={1,2},B={2,3},则?U(A∪B)=( )
A.{1,3,4}, B.{3,4}, C.{3}, D.{4}
答案
【答案】D
解析
【解析】
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185339-37030.png)
,
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185339-10817.png)
.
考点:集合的交并补运算
举一反三
【题文】设集合
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185327-43543.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185328-86363.png)
( )
【题文】已知全集
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185307-67728.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185307-31182.png)
=
【题文】已知全集
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185256-67812.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322185256-82303.png)
=
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