解题方法
1 . 对非空数集
,
,定义
与
的和集
.对任意有限集
,记
为集合
中元素的个数.
(1)若集合
,
,写出集合
与
;
(2)若集合
满足
,
,且
,求证:数列
,
,
,
是等差数列;
(3)设集合
满足
,
,且
,集合
(
,
),求证:存在集合
满足
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2879c154a00d481e9b73a3fd1c56f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8279d9dd0b7750953cb9e2098b3b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7c14c3a132f7fed19e8298890692bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3f7bcd226dc1daa07500ffa9b57965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbaf050f74e3b87e6d2f9647fc43fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9f6ea6346066054b5c722763d6b026.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c51a72af8fefb52643a2ccfe2c0100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5867fde790c54e6a931c5d1d22b049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81439ea75624aba008bd0f6a35dbf15.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/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
(3)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c51a72af8fefb52643a2ccfe2c0100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5867fde790c54e6a931c5d1d22b049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1863bbba4b8653b4c99ff67fc3edb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef61be75060a7d37c8bc03782be6530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ac49ab7c8001c209b8611b9ea40d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0588c80fa0ee2598f12eb7725c2e406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c822b25dca0587cea9e29c48849de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6ce6a51538d70382465e76b6d16f52.png)
您最近一年使用:0次
2022-03-30更新
|
1769次组卷
|
4卷引用:专题01 集合与常用逻辑用语(讲义)-2023年高考数学一轮复习精讲精练宝典(新高考专用)
名校
2 . 已知集合
(
且
),
,且
.若对任意
(
),当
时,存在
(
),使得
,则称
是
的
元完美子集.
(1)判断下列集合是否是
的3元完美子集,并说明理由;
①
; ②
.
(2)若
是
的3元完美子集,求
的最小值;
(3)若
是
(
且
)的
元完美子集,求证:
,并指出等号成立的条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6040700d8c0d30470a38d233c12f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cbf041bb12004891be66236a427bf12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/952f1e0ce5bd53a6d5e8bb07ea2da5f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9ca84aa3597da3531ac4c175d94147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18db8b768e5060b3471415e4b55ac30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e676073a8d2acb1678fdc705e33f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcaa284b3d0dce4256ded57204703c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a236fe66ea4ef97f3cba08affdb9de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d169a02afabbe304cf64b355bf71742a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)判断下列集合是否是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c078203503613eb6dab717ffe1e513a2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3d724a3e6f93bc0be9957d94bf30ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8dcc2ae480c1fdba0d4b89922a355f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8d6cf178ab517dc7e27523be5321d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0628c5791b48f147759f9f4a72e90f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa2160591c654883f613e6dcd9851d6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cbf041bb12004891be66236a427bf12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6040700d8c0d30470a38d233c12f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32da979e212a228284f556eb51cc96f2.png)
您最近一年使用:0次
2022-03-24更新
|
1181次组卷
|
6卷引用:北京卷专题02集合(解答题)
3 . 设
且
,集合
,若对
的任意
元子集
,都存在
,满足:
,
,且
为偶数,则称
为理想集,并将
的最小值记为
.
(1)当
时,是否存在理想集?若存在,求出相应的
;若不存在,请说明理由;
(2)当
时,是否存在理想集?若存在,直接写出对应的
以及满足条件的
;若不存在,请说明理由;
(3)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a40142c84be68ee2918c3a8303388c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179de8d0ec06e96b2fa0ac16ede34e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76fbcfa1d6ec3bec5f131a8c953a705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd28f29074d36b6721a929eb217f9ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf538440bd45e5881f2b22994560ba7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76fbcfa1d6ec3bec5f131a8c953a705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76fbcfa1d6ec3bec5f131a8c953a705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(3)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b58ca66d3e9ac1283703b5063ac9bea.png)
您最近一年使用:0次
名校
解题方法
4 . 已知集合
的元素个数为
且元素均为正整数,若能够将集合
分成元素个数相同且两两没有公共元素的三个集合
、
、
,即
,
,
,
,其中
,
,
,且满足
,
,
、
、
、
,则称集合
为“完美集合”.
(1)若集合
,
,判断集合
和集合
是否为“完美集合”?并说明理由;
(2)已知集合
为“完美集合”,求正整数
的值;
(3)设集合
,证明:集合
为“完美集合”的一个必要条件是
或
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da10a46022dba014432f4b8c9a33a3c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d5add49505a286370d75c05bb37a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29cd450d0feaea9acb27a60430f4a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521c8f3f084af427ec1c464f8b6bed86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea7fcdb5423c1c8c032a3efcf245682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c7bb58dca886fc65d874e2b30040c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9cfd1398bb75618f8221abd14e97af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5049cefc642e08e2ba05e4f1029486de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ca97c733e72b990f1ce7a39aea6510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5528d8496504b48fe16e8d4990fc9380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b052876711132da9ca65a3330251bbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39bc70fdaa725f9350b5a3356edeeb52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29d686add2ae40bc9001ad85d2ef14f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71146e2f4a7ed5efd2585021ecb820f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d1a5cd2d7e140e41954c40198f508b.png)
您最近一年使用:0次
5 . 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
|
1077次组卷
|
5卷引用:北京卷专题02集合(解答题)
名校
6 . 已知集合
,其中
.对于
,
,定义
与
之间的距离为
.
(1)记
,写出所有
使得
;
(2)记
,
、
,并且
,求
的最大值;
(3)设
,
中所有不同元素间的距离的最小值为
,记满足条件的集合
的元素个数的最大值为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d9b434ed11c614630ad6a71bf1b196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53422543e9a9311416faf749bdda67b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1a7c3713945abc4eca8485945abf32.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/80ebc8c7e32c1b561a908a36cfa2cbb5.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de36ac74e2640a897dedd876abcb63b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644d2ee36439bbc01fb4f35e9d24e5bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf15320a185c13d59087e9391485612.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d089503d05901e02113c0ed0bd59dff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a3b20462ba83086d0711a25ed83bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8b9dbb9c52862ac974003241d68fb61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3bcb4828b16c8e845492f1a53ddd9a9.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2b280a6a65c9bf2f20cad5d1106080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff60dcf2b1b2484b1ba940af96d336c.png)
您最近一年使用:0次
2021-05-30更新
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1166次组卷
|
3卷引用:第01节 集合(好题帮)
名校
7 . 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)
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![](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
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1462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)
8 . 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
9 . 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
|
1164次组卷
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3卷引用:北京卷专题02集合(解答题)
名校
10 . 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
|
1119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(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)