名校
解题方法
1 . 已知全集为
,集合
.
(1)当
时,求
;
(2)若“
”是“
”的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf3d46d67ef50002ca18e04a3bb0442.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda922978abb112ea099f28ff9ec1170.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f9e3e9114efdef663ecd60364e2c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
2 . 若集合
,
,则
的子集的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b191144d6fa47b31cfb62ee993b8cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07436ab766ccdc78cc443ffcd772b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.1 | B.2 | C.4 | D.8 |
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2024-05-07更新
|
299次组卷
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2卷引用:广东省广州市第六中学2023-2024学年高一下学期期中考试数学试题
3 . 函数
的定义域是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39a1d981b66b21cda5d2127cd2b3b51.png)
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名校
4 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53954d749c2cab33217232d578b0b30b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e4b2009ea98381a10e747dd50ac605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f347a1afda1822e54b6e9d8b6380c0d3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
5 . 已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79fbb4aa777c4bc166c7012f09ce20ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1f8668bc8bd95010a3647761da283d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-04-09更新
|
225次组卷
|
2卷引用:宁夏石嘴山市平罗中学2022-2023学年高二下学期期中考试数学(理)试题
名校
解题方法
6 . 设全集
,集合
,
.
(1)求
;
;
(2)若集合
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7c09de41c9b626dfe595880fe6e25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e10174e7ad3229165b7587d450c1fa96.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b109e426e848c161a79366657ca264dc.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31438ef045f458c291e1f2b4242d6463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3662b24ada314b9bd748f3f6519bf4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-03-24更新
|
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2卷引用:广东省广州市海珠区岭南画派纪念中学2023-2024学年高一上学期期中数学试题
名校
7 . 下列能成为x>2充分条件的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
8 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d33ae5a2570024aa8e9c01fb14ef340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339136f4d7bce2ec2a01a54354c3b5b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab4a21e6beb823a61a61af0b15571c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40519913ba673596c1ed0dca6548fc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-10-11更新
|
463次组卷
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4卷引用:上海市上海中学2023届高三上学期期中数学试题
10 . 若集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b683a8d436baa5f66f69932971165722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-09-03更新
|
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