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解题方法
1 . 已知集合
,
,
.
(1)求
,
;
(2)若
是
的必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a751259425512faf3621c3205b5a5a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745cc01df498e3a0f3551f051536f692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a977ba0abc010ba5b90e69399b438c7f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c9520bbe054b90a816abb58695e89b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-10-31更新
|
179次组卷
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2卷引用:山西省运城市景胜中学2022-2023学年高二下学期5月月考数学试题(B卷)
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2 . “![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbc809c8ef17d60ba5c2c9fa0af7fd9.png)
”是“
”成立的.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbc809c8ef17d60ba5c2c9fa0af7fd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdf0492b29dae4fd12e6f1212cf9bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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2019-09-17更新
|
411次组卷
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2卷引用:山西省运城市永济中学2018-2019高二下学期期末考试数学(文)试题
13-14高三上·上海金山·期末
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3 . 设集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a1016211bf29976c3e207d7189cbeeb.png)
(1)求集合A、B
(2)若
,求实数a的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a1016211bf29976c3e207d7189cbeeb.png)
(1)求集合A、B
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
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2019-12-12更新
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9卷引用:山西省芮城中学2016-2017学年高二下学期期末考试文数试卷
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4 . 设集合
,则下列图形能表示A与B关系的是.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac84da6674901c41f31d11a6b881996.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-07-07更新
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560次组卷
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4卷引用:山西省运城市夏县中学2016-2017学年高二下学期期末考试数学(文)试题
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5 . 已知集合
,
,且
,则m的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3740b14238f880b9714bc694e5b51472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6aa7fc9d6e1c5f54296db255488974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
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