在①
是
的充分不必要条件;②
;③
这三个条件中任选一个,补充到本题第(2)问的横线处,求解下列问题:
已知集合
,
.
(1)当
时,求
;
(2)若选______,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d7a271361617b5bdf757abae67aafb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1e1e9b714b8f8159390ace745842d4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d85b8aedaaf52431bd872d45efa52dc.png)
(2)若选______,求实数a的取值范围.
更新时间:2022-11-14 19:44:48
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【推荐2】已知集合
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