名校
1 . 已知集合
,若
,则集合B可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc03ec3d78487844b44cd273efc9188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49d6fa4b6c2bf920e6ddb225b1d0baf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 已知集合
,
.若
,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc292e812524b956720d6206ee1bfd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d02afb1a8e2b80447608afc659af55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db8e790554a0143859c55c028c4c73e.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2021-12-20更新
|
862次组卷
|
7卷引用:北京市第一零一中学2023届高三三模数学统考四试题
解题方法
3 . 已知集合
,
,若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521a508e725600221f5e095adb01ef65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27f99ed0e70bfc1c46d8bc268c13f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-04-07更新
|
1143次组卷
|
6卷引用:北京市海淀区2021届高三下学期期中数学试题
北京市海淀区2021届高三下学期期中数学试题北京市海淀区2021届高三一模数学试题北京卷专题01集合(选择题)(已下线)押第1题 集合-备战2021年高考数学(理)临考题号押题(全国卷2)(已下线)押第1题 集合-备战2021年高考数学(文)临考题号押题(全国卷2)(已下线)1.1.3集合的基本运算(2)
4 . 已知集合
,则满足
的集合B的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5738a2847abbbd43537db175a2beef17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a105918e229ff4fb91683b30127874e6.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
2020-05-14更新
|
593次组卷
|
2卷引用:2020届北京市东城区高三一模线上统练数学(二)试题
2018高三·全国·专题练习
名校
解题方法
5 . 已知集合
为集合U的n个非空子集,这n个集合满足:
①从中任取m个集合都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a636b4475956b08abeacf267cd948d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411837b4b3078d05b43cb0439259a362.png)
成立;
②从中任取
个集合都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c532ba7f661d6bb1172fca07cfa27295.png)
成立.
(1)若
,
,
,写出满足题意的一组集合
;
(2)若
,
,写出满足题意的一组集合
以及集合
;
(3)若
,
,求集合
中的元素个数的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252bab154aa5bdc9b4bce4c0d43aaf73.png)
①从中任取m个集合都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a636b4475956b08abeacf267cd948d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411837b4b3078d05b43cb0439259a362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
②从中任取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0623207595425920f16e76a7f8f268b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c532ba7f661d6bb1172fca07cfa27295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc9a3948ad05d1ce3039a96e2a97f64.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381bd52f1db4108b719cf0458323a310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fa157b4f65f3a9aa1f7f82de02e99e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6069b744fec0d7e00a7869ef8407c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe08722cf9300fe188dbbb71989c06c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
您最近一年使用:0次