【题文】设U="{1,2,3,4,5}," A="{1,2,3}," B="{2,4}," 则A∪ =
【题文】设U="{1,2,3,4,5}," A="{1,2,3}," B="{2,4}," 则A∪ =
题型:难度:来源:
【题文】设
U="{1,2,3,4,5},"
A="{1,2,3},"
B="{2,4}," 则
A∪
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142752-97672.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142752-22482.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142752-59283.gif)
=
答案
【答案】
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142752-82655.gif)
解析
【解析】略
举一反三
【题文】设
U="{1,2,3,4,5},"
A="{1,2,3},"
B="{2,4}," 则
A∪
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142713-52864.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142713-93914.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142713-34729.gif)
=
【题文】
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142709-16751.jpg)
【题文】
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323142643-40456.jpg)
最新试题
热门考点