已知集合
.
(1)求
;
(2)若集合
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07311c514196c3664c7f2e56d0898aa2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d9f59f3474f9dbfde4d279accbcdb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2023-12-20 14:07:45
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