【题文】已知集合,则=( )A.B.C.D.
【题文】已知集合,则=( )A.B.C.D.
题型:难度:来源:
【题文】已知集合
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120737-60943.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120738-15957.png)
=( )
答案
【答案】D
解析
【解析】本题主要考查的是集合运算。由条件可知
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120739-18263.png)
,所以
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120738-15957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120739-82174.png)
。应选D。
举一反三
【题文】已知集合
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120733-54145.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120734-16618.png)
=( )
【题文】若集合
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120728-60759.png)
,则
【题文】若集合
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120721-56487.png)
,则
【题文】已知集合M={x|
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120659-13952.png)
},N={x|
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120659-87039.png)
},则M∩N= ( )
A.{x|-1≤x<1} | B.{x |x>1} | C.{x|-1<x<1} | D.{x|x≥-1} |
【题文】已知集合M={x|
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120656-86933.png)
},N={x|
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323120656-96250.png)
},则M∩N= ( )
A.{x|-1≤x<1} | B.{x |x>1} | C.{x|-1<x<1} | D.{x|x≥-1} |
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