已知集合
,
,
.
(1)若
,求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb40c9c45200bf3b0e6ee07ba6a502f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eafb717a33817dde0abdafc7e0a8184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a5da1f45f9da60bd5d74bc0d55765d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2d05562d982c400a9265feef6d035e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8489e291d540e36c33cd17b037c1e9cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe0dede94945902308d3cb70d924b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2016-12-05 00:23:27
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