已知集合
,集合
.
(1)求
;
(2)若集合
,且
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d023ff5631a7c39c8d193665d2d7e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e34d7ffbb3f92380dfc0f9ff7dcd35.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3445582771be2900e7fd236b5ba77d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a298da2caface845712ac94be22f01.png)
更新时间:2021-11-25 09:35:17
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