解题方法
1 . 已知非空集合
,
满足:
,
.已知函数
,对于下列两个命题:①存在无穷多非空集合对
,使得方程
无解;②存在唯一的非空集合对
,使得
为偶函数.
下列数断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7f14bf7f60fe19b509223284455f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b0835c259c4f4afedf3d3a5e2c98c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95d247ffb2774bb7e22708b25daf7f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a73db674d29eae8f8921eff5944983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95d247ffb2774bb7e22708b25daf7f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
下列数断正确的是( )
A.①正确,②错误 | B.①错误,②正确 |
C.①、②都正确 | D.①、②都错误 |
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解题方法
2 . 设全集为
,集合
,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eca56facb2afc7ce8ef0c7e2b877d87.png)
(1)若
,求集合
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e36bb2af6570e15b088553900983507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eca56facb2afc7ce8ef0c7e2b877d87.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 已知全集为实数集
,集合
,
,求:
(1)
;
(2)若对任意的
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b012747aa668545006314686ad9198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f9c07e7f360dbab93263c587a5fe4f.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81919684bc4047d376c7e57dc6c8f1c.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d91b4f4d09a05aef843cc1bd0198a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e471669c324e6cae74146a62e1f08ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 定义集合运算
且
称为集合A与集合B的差集;定义集合运算
称为集合A与集合B的对称差,有以下4个等式:①
;②
;③
;④
,则4个等式中恒成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f4bcaec7926363d8f77c6e773920d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b998f1e3675e0fa3b790c416a751af63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85fd86cfc7b165670282764b9cb98d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/824966367aba23c3f96b2b4fc1898af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e303d1336737897700f30df316f010f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906d698d5ea771e934ac68bcfffd77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f574fa7e3930300a7457d933768200.png)
A.①② | B.①②③ | C.①②④ | D.①②③④ |
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2024-01-13更新
|
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|
10卷引用:上海市建平中学2022-2023学年高一上学期开学摸底数学试题
上海市建平中学2022-2023学年高一上学期开学摸底数学试题(已下线)单元高难问题01集合中的新定义问题-【倍速学习法】(沪教版2020必修第一册)上海市行知中学2023-2024学年高一上学期期末数学试卷江苏省南京市田家炳高级中学2023-2024学年高一上学期期初检测数学试题(已下线)高一上学期第一次月考选择题压轴题50题专练-举一反三系列(已下线)第一章 集合与常用逻辑用语(压轴题专练)-速记·巧练(人教A版2019必修第一册)(已下线)专题1-1 集合及其运算的12种题型(2) -【巅峰课堂】题型归纳与培优练(已下线)专题01 集合与常用逻辑用语4-寒假作业单元合订本2023新东方高一上期末考数学02(已下线)考点3 与集合相关的新定义问题 --2024届高考数学考点总动员【讲】
解题方法
5 . 设全集为
,集合
,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a4e6e1f9216c679584e815fa78c2bd.png)
(1)若
,求集合
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d08365e3a5ba1516c8734af89f3db59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a4e6e1f9216c679584e815fa78c2bd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00c57e4a79cde3635bcbce53c96d952.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-01-12更新
|
391次组卷
|
3卷引用:上海市东华大学附属奉贤致远中学2023-2024学年高一上学期12月教学评估数学试题
解题方法
6 . 设集合
.
(1)当
时,求
;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/748117d873a5746df3a8d5e974ee3963.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
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解题方法
7 . 已知常数
,集合
,集合
.
(1)若
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a32e6247157d47bffbaa207e05b4b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f15dee2fa44057e7ed3c85a439b2dab.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
8 . 设
是非空集合,定义:
且
.已知
,则
等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df342e791e10111947f80f4740f12fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfcc4b0bd01c717cac051a0e626a6171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f116e2f2de9ce7fbc26ce43c23d624c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df69c6a544f62a016490b012c353ae7.png)
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9 . (1)已知关于
的方程
有两个实数根
、
,则
的取值范围是______ ;
(2)对于区间
我们规定
是这个区间的“长度”.已知
、
都是集合
的子集,
,
,则集合
“长度”的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0696dae980c6542aaef11d501a3da107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de4736571ef8eaf36b280d70ca3acc2.png)
(2)对于区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e06343b4506a3741b3469cbff39eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb5110572c30ca3b7abda24c7a34dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7926d19cfb9fc821d6c4bfa5601ad8bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
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10 . 已知
,集合
.
(1)用区间表示集合
;
(2)设
,探究
能否为有限集?若能,求出使
中元素个数最少时的
的取值范围,及此时的集合
;若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba8cc5f22241c9401c86a0bcc24db07.png)
(1)用区间表示集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b26b09598975a8c6b3a6b34a3ce3d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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