已知集合
,
,
.
(1)写出集合
的所有真子集 ;
(2)若
,求
的取值集合;
(3)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c004fc0a6a5f2a9d1accfec19aeb6b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/867d3f916706dee7866cbbd66eeb7384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f58d66ec6ae681cc34369f1cc21ccf.png)
(1)写出集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29cd450d0feaea9acb27a60430f4a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2021-12-03 14:21:26
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