1 . 设全集
,集合
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef87ad66e5f7766f829dc5b3fe5ead2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715ea06834b0e78b2069342476fd0eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b196d5437671412700443727b783751a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-03-01更新
|
325次组卷
|
2卷引用:四川省泸州市泸县第一中学2024届高三上学期期末数学(理)试题
2 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87a0f2d99ae61508f0556f76d0ab991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1e4eab723d8a692293f3bae422b830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d413168d2ad9dccacd5ca4cc0841f2.png)
A.![]() | B.![]() | C.7 | D.0 |
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名校
3 . 聚点是实数集的重要拓扑概念,其定义是:
,
,若
,存在异于
的
,使得
,则称
为集合
的“聚点”,集合
的所有元素与E的聚点组成的集合称为
的“闭包”,下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f935b7601b228d3665631bf82bf03221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479a4db00b70dce0c5d88715851fa564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38573dc7fb73024c610b7d123a449437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c254d67bba7f26489ff32cb12831095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61588617d22abd00af4ca489bb3a8787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61588617d22abd00af4ca489bb3a8787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61588617d22abd00af4ca489bb3a8787.png)
A.整数集没有聚点 | B.区间![]() ![]() |
C.![]() | D.有理数集![]() ![]() |
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4 . 已知集合
,
,记
.则下列等式成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402c8521b4c81a4cfde12745ecbff274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b11c90ed56424c224318790760a861a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36efc14017c7cbdd6495c4e9df695ab.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 已知集合
,
,若
,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30afb3daca2f6f1af823dda96596d15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8b46a41c3aa61cdb09f56ae1fa16aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a45ed519f02f2df64476227f0cae74.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
6 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b43dfec9c813045d44ca3ed99d5ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04875bbe6755cb252b1b504761ca8814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933347fd4d93628c8a9cb6a540560471.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-28更新
|
843次组卷
|
4卷引用:江西省九师联盟2024届高三上学期1月质量检测试数学试题
江西省九师联盟2024届高三上学期1月质量检测试数学试题江西省宜春市上高二中2024届高三上学期期末数学试题(已下线)考点2 集合运算 --2024届高考数学考点总动员【讲】(已下线)1.3集合的基本运算
解题方法
7 . 已知集合
,
,且
,则实数n的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c969d41a860a02582dd3fce1077d29c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2527bade16e5461e2406353503224b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
A.0 | B.1 | C.0或![]() | D.![]() |
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8 . 设集合
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92af691969904a903e7cfe5da6964dee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cbcd2d3ac946b3a47bdf6ef1d7a7905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ba256288407b6813d324fb9eef0702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知集合
,
,则
中的元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153fceaf87e4a02f20e624af51c9aa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94816996bfa78aac5a67fb96f6ee2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ae18508906c21d3e1199f231b1a9a4.png)
A.3 | B.4 | C.5 | D.6 |
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解题方法
10 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f7259086b283a4af8ee4bf4cfbc4b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a2a80e2a64f286eaeeafd0a49d3cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9566928d97ef2f863480984612bb57ca.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次