解题方法
1 . 已知全集为R,集合
,
,并且
,则
的取值范围是
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1274769dd8c0986e30bb0d370836c357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df98e6c360f2a2edf35d2d7319b2ed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56fec5797aae117f0e0d6da987cf3377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a271fbe1d978a7a1d25d4b38cae7615d.png)
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2 . 已知全集U,集合
,
,
,则集合
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b37df360185ccaf375b4e7e1a24c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4456bb8b59eedcb61019b33580c04f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0658f5cbf327f33e7f4a80132da4c84e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4a61c0a52b93d0afaecebd39004271e.png)
您最近一年使用:0次
解题方法
3 . 已知全集
,集合
,
,则
. ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ff52d97910b1ba0dda2e67bc5f7625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bfdfd1a175a860a18587e4c21e04da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a93031e4fafab7d1e77a04f5f45d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be417400619e7d206dfe01b93b152a02.png)
您最近一年使用:0次