名校
1 . 已知集合
,集合
,集合
,且集合
满足
,
.
(1)求实数
的值.
(2)对集合
,其中
.定义由
中的元素构成两个相应的集合
,
,其中
是有序实数对,集合
和
中的元素的个数分别为
和
,若对任意的
总有
,则称集合
具有性质
.
①请检验集合
与
是否具有性质
,并对其中具有性质
的集合,写出相应的集合
和
.
②试判断
和
的大小关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1fd5e97a412914f4f8e650fcc63358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0945b9f47f37e913573a970c9c0f66e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71fc06717e9b476d78e50a4ceed8564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725e7e04c2a89481457c20d6438dab0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f75ed8f6ace26756031eb3d813db6c0.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de04e7bd1c120d55e09bc0ee11be3fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609e9afd827286fb76551b16aaaebf89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d00adb50063efec9a89350927d52bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457e06cd98cdcba9383e28f1b6cdc488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc020b0997a2f37b214718112b79d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c745503c010711188c306e1831cf712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①请检验集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709a1f33195ab62f2da488b27a219c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c67b05f5f43a2d4371a42e65dea900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
②试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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739次组卷
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3卷引用:江苏省南京市第二十九中学2020-2021学年高一上学期10月月考数学试题
江苏省南京市第二十九中学2020-2021学年高一上学期10月月考数学试题北京市第八十中学2021-2022学年高一上学期期中考试数学试题(已下线)专题02 集合与常用逻辑用语常考压轴题型-2021-2022学年高一《新题速递·数学》(人教A版2019)
2 . 对于有限个自然数组成的集合
,定义集合
,记集合
的元素个数为
.定义变换
,变换
将集合
变换为集合
.
(1)若
,求
;
(2)若集合
,证明:
的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69154dbf052ecb6866028801051aa0e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0928441297e887330350a46dd2b40841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4f30fe128cb72f71b144937e4093d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b403fc36865ed11b00995a8321e52b9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928a2f491d5b6e5acb87888663aec0ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344d95d02bc0b476768fabe18105289b.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8f14b19f026b10473b3377b3fbf342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811a0f2a63600129f7143128884dd144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2216940861922a85b6a947a4317ef753.png)
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2021-08-28更新
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7卷引用:安徽省合肥市第一中学2020-2021学年高一上学期第一次段考数学试题
安徽省合肥市第一中学2020-2021学年高一上学期第一次段考数学试题湖南师范大学附属中学2022-2023学年高一上学期第一次大练习数学试题北京市第八十中学2022-2023学年高一上学期九月月考数学试题(已下线)1.2 充分条件与必要条件提高练-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)专题02命题与常用逻辑-2022年新高三数学暑假自学课精讲精练(已下线)2.2 充分条件、必要条件、充要条件(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
名校
3 . 已知M是满足下列条件的集合:①
,
;②若
,则
;③若
且
,则
.
(1)判断
是否正确,说明理由;
(2)证明:
;
(3)证明:若
,则
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca05074e5a317ae45d073962bdf74dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fefe237385a2dc1b005d8dc61ef56eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57c23eb9af964e65a91af487f4c66cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c443466385f21cd3f06e2e4229add79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ac8248bb70f9ef5b0cb7d025e05160.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee824cf4b0d0011adabfec2ef759d1c.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143beb0df5feff68bf6dd94fdfd6b5b.png)
(3)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57c23eb9af964e65a91af487f4c66cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c4dffdf9c06c0d11d0410f194afc8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f06a4a9deb51418c20e7e7376cc807.png)
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2021-03-31更新
|
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4卷引用:江苏省南通市通州高级中学2020-2021学年高一上学期第一次阶段性测试数学试题
名校
4 . 设A,B为两个集合,我们定义集合
为两个集合A,B的差集,记为A-B
(1)已知
,求
和
.
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8054bd86268fb956685c0883f135f406.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d46cde3e85dfc5b9c71f53265fb03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41604a15c2ec813ad37bd0a9bfa33136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7845a8c978192626a74e63f6c8bd8e9.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663ff7fb37bdd6c89a2ab93904fd95b2.png)
您最近一年使用:0次
名校
5 . 已知集合
为非空数集,定义:
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e092a46bd0eb089045217e1b13ccbb65.png)
(1)若集合
,直接写出集合
,
.
(2)若集合
,
,且
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1868c8a0db983c9cc2695294fa03b1.png)
(3)若集合
,
,
,记
为集合
中元素的个数,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d6adf2d45f344e1ca24c4cf0e4884c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e092a46bd0eb089045217e1b13ccbb65.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa9c26b45f6947550f7c40cbfdecbba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faaa2c9b8bc8ee534a517d6a108a66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76ad1e03a6ba59e8164e37c5e7e063e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1868c8a0db983c9cc2695294fa03b1.png)
(3)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b408aeda05ba8f05babea6251dcab2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a6a3d1be93cf6d16ee6e0ce0497f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650aa72fd4034517f9f981e382c1e50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650aa72fd4034517f9f981e382c1e50.png)
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2020-11-15更新
|
2491次组卷
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21卷引用:湖南省长沙市湖南师大附中2020-2021学年高一上学期第一次大练习数学试题
湖南省长沙市湖南师大附中2020-2021学年高一上学期第一次大练习数学试题北京大学附属中学2020-2021学年度高一10月考衔接班数学A层试题北京市海淀区中国人民大学附属中学2020-2021学年高一(上)期中数学试题北京市中国人民大学附属中学2020-2021学年度高一年级上学期数学期中练习试题北京人大附中2020-2021学年高一(上)期中数学试题(已下线)期末测试(能力提升)(1)-2020-2021学年高一数学(必修一)单元测试定心卷(沪教版2020)(已下线)高一上学期期末全真模拟02-2020-2021学年高一数学期末考试高分直通车(沪教版2020,必修一)(已下线)知识点03 交集、并集-2021-2022学年高一数学同步精品课堂讲+例+测(苏教版2019必修第一册)(已下线)第3课时 课后 集合的基本运算(已下线)第一单元 (基础过关)集合与常用逻辑用语 A卷-【双基双测】2021-2022学年高一数学同步单元AB卷(人教A版2019必修第一册)(已下线)第03讲 交集、并集(教师版)-【帮课堂】2021-2022学年高一数学同步精品讲义(苏教版2019必修第一册)第1章 集合(章末测试提高卷)-2021-2022学年高一数学同步单元测试定心卷(苏教版2019必修第一册)(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)北京市广渠门中学2021-2022学年高一上学期期中质量检测数学试题(已下线)1.3 交集、并集(已下线)专题01 集合与逻辑(讲义)-2第一章 预备知识 期末综合复习测评卷-2021-2022学年高一上学期数学北师大版(2019)必修第一册(已下线)第3课时 课后 交集、并集(完成)(已下线)高一上学期期中【易错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)(已下线)第1章 集合与常用逻辑用语-【优化数学】单元测试基础卷(人教B版2019)(已下线)集合及其运算
名校
6 . 已知
是满足下列条件的集合:①
②若
,则
,③若
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ac8248bb70f9ef5b0cb7d025e05160.png)
(1)判断
是否正确,说明理由
(2)证明:若
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c4dffdf9c06c0d11d0410f194afc8c.png)
(3)证明:若
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f17b77451caf220bd4808446c5c79e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c443466385f21cd3f06e2e4229add79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ac8248bb70f9ef5b0cb7d025e05160.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143beb0df5feff68bf6dd94fdfd6b5b.png)
(2)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c4dffdf9c06c0d11d0410f194afc8c.png)
(3)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f06a4a9deb51418c20e7e7376cc807.png)
您最近一年使用:0次
2020-10-23更新
|
585次组卷
|
6卷引用:北京师范大学附属中学2019-2020学年高一上学期数学第一次月考试题
北京师范大学附属中学2019-2020学年高一上学期数学第一次月考试题上海奉贤区曙光中学2020-2021学年高一上学期10月月考数学试题北京市海淀区北京医学院附属中学2021-2022学年高一10月月考数学试题沪教版(2020) 必修第一册 精准辅导 第1章 1.1(1) 集合(已下线)1.1集合初步(第1课时)-高一数学同步精品课堂(沪教版2020必修第一册)(已下线)1.1 集合的概念及特征(精练)《一隅三反》系列
7 . 已知集合
为非空数集,定
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d0b31a3a2f0e3d81036338bc74c0bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b70419d498a0672197837b69bb5811.png)
(1)若集合
,直接写出集合
及
;
(2)若集合
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d5b21057e68e84dae9af30b86cd09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d0b31a3a2f0e3d81036338bc74c0bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b70419d498a0672197837b69bb5811.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/265e81e52218232e16c78f57b3aa0de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b26ea9b3e6e286874c5dca1badea723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e16289945d1d1c529fb1bfd4d828f413.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7591668ec1bc5e8b1f2c4dba4835d1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9473a5974fa9c4286f90f6a3637411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1868c8a0db983c9cc2695294fa03b1.png)
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8 . 记有理数集
的非空子集
具有以下性质:①
;②若
,
,则
;③存在非零有理数
,
且每一个不在
中的非零有理数都可写成
的形式,其中
.
(1)若
,
,求证:
;
(2)若
是非零有理数,且
,求证:
;
(3)求证:
,则存在
、
,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e680c82535270feea54ec5cc81fcc99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d05f1347d2bcfdd009cd92b4528db70d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd6719b88b02f805cd280a273317686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c99a6c6f64340823bb8cd67360cff9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c70077b84eda1b47e2acae9fd5bb8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e337060df2f24d9d83cd33c1d3f1322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aafde6d7fe0d22936f82c23ad944dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084df0babb739a54a118e5a1b6800891.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084df0babb739a54a118e5a1b6800891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013ee61d98c06bf3601bf752676d2e26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa2a702b01ea4b4cadb6b74024daaed0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad481cbfb67ac9cdbc0537f3de23b022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15106af5bc32a503a164d7d183f7cdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41a08c160ca2373f99628d5d2125c90.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8647b00cc8c8f35555c7d78cf2812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfc4d1adffa8e29873658f8ed62a9ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171f0e6da3d34eb9b71152ae5b569d66.png)
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名校
9 . 已知集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1edda0a840fa9fd056a84b3851fe2840.png)
,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
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1edda0a840fa9fd056a84b3851fe2840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc70211f57c2993d7047c89fd3fc2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb56545f5200342abd9e406cb200328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9117bd5df08f7f5cf00d1bd3ced32e0c.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/b623d5f3c82cfdc60c0d74f381e6e1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4bd27eda92741b7923451594321771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22111b1f07e7873e5a156d1937eaac27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
您最近一年使用:0次
10 . 设集合
满足条件,若
,则
(
且
).
(1)若
,求集合
;
(2)若
,试证明:
;
(3)集合
能否为单元素集合?为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74137fa46f6f3208f5924cb1b8c66b08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed961de27af72b7d11887ccfb6f15071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d59d461091895f698c5d33dcb9c804.png)
(3)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次