1 . 设U=R,
,
.求A∩B、A∪B、
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f307c90499d230c35efd533ab5220a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57b3bcbf6ee4ce737f0f7f2d180ed33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5783bbe3c8f5c972179baa4b18b4b956.png)
您最近一年使用:0次
2 . 设全集
,
,
,则
=
![](https://img.xkw.com/dksih/QBM/2012/2/24/1570770674122752/1570770679185408/STEM/658ffcef3f3c4db08a778de39c82563e.png)
![](https://img.xkw.com/dksih/QBM/2012/2/24/1570770674122752/1570770679185408/STEM/a1e3301b70014f37a50d2e76023d91cb.png)
![](https://img.xkw.com/dksih/QBM/2012/2/24/1570770674122752/1570770679185408/STEM/6d43aaa79b23469293d530081293bc41.png)
![](https://img.xkw.com/dksih/QBM/2012/2/24/1570770674122752/1570770679185408/STEM/45332468fe3a446483aad2ac1968f385.png)
A.{2} | B.{1,2,3} | C.{1,3} | D.{0,1,2,3,4} |
您最近一年使用:0次
A.{2} | B.{1,2,3} | C.{1,3} | D.{0,1,2,3,4} |