名校
1 . 已知n为正整数,集合
,对于
中任意两个元素
和
,定义:
;
.
(1)当n=3时,设
,
,写出α-β,并计算
;
(2)若集合S满足
,且
,
,
,求集合S中元素个数的最大值,写出此时的集合S,并证明你的结论;
(3)若α,
,且
,任取
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fdc6dad9c62c495cc30a7f50fdbb489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98369495810e7d55574c6f1b98a3d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c944003e17e46c0b5c30290f30168e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074857bce9341943776d61cfd3671bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8dbd07791348de8617d1828a63baabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51502b3e47242053afb8446b5773dfe2.png)
(1)当n=3时,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40429d2b5c4e1a21f22fe29ac95e2aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f910f46cbd8813fd7b17f759f37d99a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2e8c91e036709951059306fa27b762.png)
(2)若集合S满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba57737694a937dfe79ce0f7027cd1f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2b7e2637c4af0bbbb96a8ba3e7e88b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fce4316071d1d7e1b9e465a62fa0e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9aa2b875e36fe3c4d59d12d042cca7.png)
(3)若α,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d7d42d4541d4dafc083f7f81dd43ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9aa2b875e36fe3c4d59d12d042cca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b8d94080f2b7bcf1424d256e718876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e5f330a9ab3f514a25d262ef9d94b3.png)
您最近一年使用:0次
2022-01-14更新
|
394次组卷
|
4卷引用:北京市东直门中学2023-2024学年高一上学期期中考试数学试卷
2 . 已知有限集X,Y,定义集合
,
表示集合X中的元素个数.
(1)若
,求集合
和
,以及
的值;
(2)给定正整数n,集合
,对于实数集的非空有限子集A,B,定义集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37a871acf4ef1e04a263c9853fcd65.png)
①求证:
;
②求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba9bcb197733a88bfdb5bb1b5130599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37765d2927d24d4b582423c843aebcd4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee1fa3b3436a4fd2831ba0744a2719e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342692a3b8e153aeb34f6445ec4aa9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0458b272460fe68e6ec4090a5871360c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ec2317a8d6cd187a28bbb6debd844e.png)
(2)给定正整数n,集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d878c148fbe54dd59228fbf86eeb80ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37a871acf4ef1e04a263c9853fcd65.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957226dea58372153eb11e5a198285a4.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d03ae714bb01eb8c5b29c077d8b3def.png)
您最近一年使用:0次
2021-05-06更新
|
1069次组卷
|
5卷引用:北京卷专题02集合(解答题)
名校
3 . 设
为正整数,若
满足:①
;②对于
,均有
;则称
具有性质
.对于
和
,定义集合
.
(1)设
,若
具有性质
,写出一个
及相应的
;
(2)设
和
具有性质
,那么
是否可能为
,若可能,写出一组
和
,若不可能,说明理由;
(3)设
和
具有性质
,对于给定的
,求证:满足
的
有偶数个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac19e2a797cd0a408316988a63b3755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ef0754416009fd2d5564c75bfc4cf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca6bd838c2d2ee476661795124aedae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937c09d82c480e4d67f8a48d3f66c5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ed8bcecf6762164c9f8894942d5083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af70015e47edd3f7eeb441645283c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ef0754416009fd2d5564c75bfc4cf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353e9a50a9c5fd00f386dad71228aa55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d379053d28abe93a8c937f4383906436.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f449a982c08087cb2e1408906468ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34978dec9ff799965824d9c1c99717e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8147ecded7df76c941673ac8251b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7204d924d34fc81911de26a460b252.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19305744dcc72ca3997f9bc0dcdfb5d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7204d924d34fc81911de26a460b252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e422fdd219db84761945e297fffb86a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af70015e47edd3f7eeb441645283c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ff4e04771ba1a0b4ac983c0a2a2734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
您最近一年使用:0次
2021-04-07更新
|
1450次组卷
|
6卷引用:北京卷专题02集合(解答题)
北京卷专题02集合(解答题)北京市东城区2021届高三一模数学试题北京市顺义区杨镇第一中学2024届高三下学期3月检测数学试题(已下线)专题04 集合中的压轴题(二)-【尖子生专用】2021-2022学年高一数学考点培优训练(人教A版2019必修第一册)(已下线)第一章 集合与常用逻辑用语(A卷) -2021-2022学年高中数学必修第一册课时解读与训练(人教A版2019)(已下线)第1章 集合与常用逻辑用语(基础、典型、新文化、压轴)分类专项训练-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)
4 . 对于正整数集合
(
,
),如果去掉其中任意一个元素
(
)之后,剩余的所有元素组成的集合都能分为两个交集为空集的集合,且这两个集合的所有元素之和相等,就称集合
为“和谐集”.
(Ⅰ)判断集合
是否是“和谐集”(不必写过程);
(Ⅱ)求证:若集合
是“和谐集”,则集合
中元素个数为奇数;
(Ⅲ)若集合
是“和谐集”,求集合
中元素个数的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e53e63811f83121eba1ca9efb17515.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0e3b00fe47801afb53ec56706c21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(Ⅰ)判断集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29577e558c82e3121c9ba2bb2fea875b.png)
(Ⅱ)求证:若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(Ⅲ)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
名校
5 . 已知数集
.如果对任意的i,j(
且
),
与
两数中至少有一个属于A.则称数集A具有性质P.
(1)分别判断数集
是否具有性质P,并说明理由:
(2)设数集
具有性质P.
①若
,证明:对任意
都有
是
的因数;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a988803f3881afaa6e10917f0c53cc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ae331839bce8f3c14d7efd7f9d8915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cded4b2983d8d1ab4c093e5334c6aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f52783e7a39f438adf08ef7d05d8c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf9fc9e8c9940547678ff7934363f52.png)
(1)分别判断数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db366f386796ab7dfd5f3b9a9903d404.png)
(2)设数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21111c1f93a2d3be25d33acbfe008c3.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e868355fb99c713842d39a1689a8d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c5d1969a8e26392e7e947b8279154c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed6f5e1411e8bc6bc938a9b84929ff2.png)
您最近一年使用:0次
2021-05-10更新
|
1158次组卷
|
3卷引用:北京卷专题02集合(解答题)
名校
6 . 对于一个非空集合A,如果集合D满足如下四个条件:①
;②
,
;③
,若
且
,则
;④
,若
且
,则
,则称集合D为A的一个偏序关系.
(1)设
,判断集合
是不是集合A的偏序关系,请你写出一个含有4个元素且是集合A的偏序关系的集合D;
(2)证明:
是实数集R的一个偏序关系:
(3)设E为集合A的一个偏序关系,
.若存在
,使得
,
,且
,若
,
,一定有
,则称c是a和b的交,记为
.证明:对A中的两个给定元素a,b,若
存在,则一定唯一.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ff092e72c0b8af0ec11ea1e16c20c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20ff64cc48dd0907b3f86c2f72ed4fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802a18618d983265b240d352e98010d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c87ad49613978a306ab1c000c84f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fac2c1aab61d5d6b6d1ebacf76df4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04263219b135885a77d0b95ff5ae8e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b443c138c481dfd65c9f6e003d087b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fac2c1aab61d5d6b6d1ebacf76df4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55303eac47b7521d66c984919ef73245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecf5892f45e01accf16c028f1496604.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbefb4190e6d31cf43ce5258ebf325c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f4b90a63a63e136b98a6061d703c281.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6919731148cf9c61e492ecd22944897b.png)
(3)设E为集合A的一个偏序关系,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e35231b964e293122c4383dac2431b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac385ec112e6d61b90d953e3f106ee85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c0547c0182518c13ce84342425a4c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893e925c95774708b58f8be28702284c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/452f5111086abcdf21884aac981a260e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc050f06a69d0a74c28484d3d99f8f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b95219d991157bb0de786036d581b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a922973fd5aa9d110397c6ab1dce314b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d9b8041d0643aca9a58973723d3488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108d495e1cba00ecd1c2cabedd93cfd1.png)
您最近一年使用:0次
2021-03-25更新
|
1117次组卷
|
6卷引用:北京卷专题02集合(解答题)
北京卷专题02集合(解答题)北京市第二中学2023-2024学年高二上学期10月学段考试数学试题北京市门头沟区2021届高三数学一模试题(已下线)高一上学期第一次月考解答题压轴题50题专练-举一反三系列(已下线)专题04 集合中的压轴题(二)-【尖子生专用】2021-2022学年高一数学考点培优训练(人教A版2019必修第一册)(已下线)第1章 集合与常用逻辑用语(基础、典型、新文化、压轴)分类专项训练-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)
名校
7 . 已知集合
,
,
,
,其中
.定义
,若
,则称
与
正交.
(1)若
,写出
中与
正交的所有元素;
(2)令
若
,证明:
为偶数;
(3)若
且
中任意两个元素均正交,分别求出
时,
中最多可以有多少个元素.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0a422a1f3b4197761a32eea75e5f65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984c76feb97fd60961042a5a0490042e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4d0cff6698ac42bb2158babd15b20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7cf6c3ef21af43bd1b4b9ce9ad5721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c015c9a3f30d0be75666375733ea35cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2e64804787fb0b18a3d8eee3570578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4157967918cabbed7f5d82a291cc262f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80721f50d5063cb9f835ea6fc6870285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a27db54d88c391992ad9cbc65ef509e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22111b1f07e7873e5a156d1937eaac27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d671185c2cc9c5d88029e04f4b2ccf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67aadad8f385811fd0d0c8541007cbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2020-11-15更新
|
794次组卷
|
3卷引用:北京卷专题02集合(解答题)
8 . 设
为正整数,区间
(其中
,
)同时满足下列两个条件:
①对任意
,存在
使得
;
②对任意
,存在
,使得
(其中
).
(Ⅰ)判断
能否等于
或
;(结论不需要证明).
(Ⅱ)求
的最小值;
(Ⅲ)研究
是否存在最大值,若存在,求出
的最大值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c724c6119e3e17b6181178ce7e6baf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d1fd5262cae918d9c8ef6a1bede788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f84aa794bc075d6139177cd2f59925.png)
①对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbba3561714a2b7b7b675e4c319e4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b375f090c551bb2817fa942edbf9bd05.png)
②对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165df5a77d87e7c534898e995f162562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbba3561714a2b7b7b675e4c319e4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5de90d938c439d3a9a8e5e1880604f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927a02889cbfc416da88181520058c3a.png)
(Ⅰ)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb6b5ca66b71ac5daa42ce59f19f72d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432851e0d0b7a2924da29b9cc5ca1706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6b3e4ab38102e50c861c13496bd215.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(Ⅲ)研究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2020-05-12更新
|
913次组卷
|
2卷引用:北京市第一六一中学2024届高三上学期期中阶段测试数学试题
名校
9 . 数字
的任意一个排列记作
,设
为所有这样的排列构成的集合.集合
任意整数
都有
,集合
任意整数
都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b9d89f2b4a2e160458b36c8fd270c89.png)
(1)用列举法表示集合
;
(2)求集合
的元素个数;
(3)记集合
的元素个数为
,证明:数列
是等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1862403f59a94ecf2d21fe7e19d2aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c686124767ab3c2b84470b065fcef89b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7bc57de21efd7fa1776a01591d99a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12df2ae8d3e915feafa1c5c21f2926e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767965df8401842b4d727998d43a4fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280a824d01ca8de7247b6e2ddd6fffdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e2febfa043de68251b23704c5e420a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b9d89f2b4a2e160458b36c8fd270c89.png)
(1)用列举法表示集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f266dacf74b0a86d671a5a422f848cb9.png)
(2)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74c612f58462180705a1acfd433714a4.png)
(3)记集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
2020-04-03更新
|
712次组卷
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4卷引用:北京景山学校远洋分校2023届高三上学期1月期末综合检测数学试题
名校
解题方法
10 . 定义:给定整数i,如果非空集合满足如下3个条件:
①
;②
;③
,若
,则
.
则称集合A为“减i集”
(1)
是否为“减0集”?是否为“减1集”?
(2)证明:不存在“减2集”;
(3)是否存在“减1集”?如果存在,求出所有“减1集”;如果不存在,说明理由.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc7338b2a8a4a7d06acd6eb1b446564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebabd7323bae39388835a33e09046c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669926e4732ba3eca48e018aaebe7079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957d41dbe52b49c3a7339e3519a3fe84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45251c3475305d50c946539a1bd6a5f8.png)
则称集合A为“减i集”
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ed72c5ada5b4d689310406b7cef32f.png)
(2)证明:不存在“减2集”;
(3)是否存在“减1集”?如果存在,求出所有“减1集”;如果不存在,说明理由.
您最近一年使用:0次
2020-03-14更新
|
1147次组卷
|
7卷引用:北京市海淀区中国人民大学附属中学2023届高三下学期开学摸底练习数学试题
北京市海淀区中国人民大学附属中学2023届高三下学期开学摸底练习数学试题北京市人大附中2023届高三下学期2月开学考数学试题北京市海淀区宏志中学2023-2024学年高一上学期期中考试数学试卷2020届北京市中国人民大学附属中学高三开学复习质量检测数学试题(已下线)专题03 集合的运算压轴题型-2021-2022学年高一《新题速递·数学》(人教A版2019)(已下线)高一上学期期中【压轴60题考点专练】(必修一前三章)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)重庆市西南大学附属中学校2023-2024学年2023-2024学年高二下学期3月测试数学试题