1 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eab9d6aef02a900ac0b8f895fb449d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a5ce09113508ec0d2f6bbc5510788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-01-18更新
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248次组卷
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2卷引用:黑龙江省大兴安岭漠河县高级中学2019-2020学年高一上学期期末数学试题
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2 . 集合
,
.
(1)若
,求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3013df2ad9cc1fd787bbd501e2bc8c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217cf007b850b6d70ff90ea4002da8ec.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194e71511f68a71097cd98d819f69348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-07-05更新
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4196次组卷
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6卷引用:黑龙江省大兴安岭漠河一中2019-2020学年高一上学期第一次段考数学试题