已知集合
,
,
.
(1)求
,
;
(2)若C⊆B,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb148d571264c5631996f1233d23e864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99948dbadd9f1be3c34ec9e71d5b962f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fcf4c46874b355bfbc85bfa090a47db.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb17a2a90cd479b604258d1258e9636.png)
(2)若C⊆B,求实数a的取值范围.
更新时间:2022-10-15 19:48:18
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