【题文】设集合则( )A.[1,3)B.(1,3)C.[0,2]D.(1,4)
题型:难度:来源:
【题文】设集合
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155655-79586.png)
则
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155656-87216.png)
( )
A.[1,3) | B.(1,3) | C.[0,2] | D.(1,4) |
答案
【答案】A
解析
【解析】
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155656-79795.png)
.
考点:1、集合的基本运算;2、绝对值不等式的解法.
举一反三
【题文】设集合
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155650-68025.png)
则
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155651-71898.png)
( )
A.[1,3) | B.(1,3) | C.[0,2] | D.(1,4) |
【题文】若全集
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155615-73663.png)
,则集合
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155616-88244.png)
等于( )
【题文】已知
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155547-83948.png)
为实数,集合
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155548-99962.png)
,
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155548-84591.png)
表示把集合M中的元素x映射到集合N中仍为x,则
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155548-65953.png)
等于( )
A.1 | B.0 | C.-1 | D.![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155548-27685.png) |
【题文】已知集合M={x|x
2<4
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155521-91239.png)
,N={x|x
2-2x-3<0
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322155521-91239.png)
,则集合M∩N=
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