名校
1 . 给定的正整数n(n≥2),若集合A={a1,a2,…,an}⊆M满足a1+a2+…+an=a1•a2•…an,则称A为集合M的n元“美集”.
(1)写出一个实数集R的2元“美集“;
(2)证明:不存在自然数集N的2元“美集”;
(3)是否在自然数集N的3元“美集”?若存在,请求出所有自然数集N的3元“美集“;若不存在,请说明理由.
(1)写出一个实数集R的2元“美集“;
(2)证明:不存在自然数集N的2元“美集”;
(3)是否在自然数集N的3元“美集”?若存在,请求出所有自然数集N的3元“美集“;若不存在,请说明理由.
您最近一年使用:0次
名校
2 . 设集合
,在集合M中定义一种运算
,使得
.
(1)若
,
,试判断
是否为集合M中的元素,并说明理由;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb3d4d059a227b77fec28232123f115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd94e5c210921dfbe11796b1fc97cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acac35b04e6b8b589c35d3c369a7640.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ad43edf388c096e7704d92340bf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab92728b35ed5798e07a2b0095bfcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18fb71f0467a746c9f6f61ed89587a0c.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b536d164a94d280d4b1391ba6d4f3206.png)
您最近一年使用:0次
名校
3 . 对正整数
,记
,
.
(1)用列举法表示集合
;
(2)求集合
中元素的个数;
(3)若
的子集
中任意两个元素之和不是整数的平方,则称
为“稀疏集”.证明:存在
使得
能分成两个不相交的稀疏集的并集,且
的最大值为14.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/477ac10cc039be2d2a06fad831fa523f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d7155d7bd00e29d2e9324a8845735b.png)
(1)用列举法表示集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
(2)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb82d62ae6889a177c70d3adf8a91056.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2021-10-17更新
|
959次组卷
|
6卷引用:上海市大同中学2021-2022学年高一上学期10月月考数学试题
上海市大同中学2021-2022学年高一上学期10月月考数学试题(已下线)1.1 集合的运算(第4课时)上海市青浦高级中学2022-2023学年高一上学期期中数学试题(已下线)第1章 集合与逻辑(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(沪教版2020必修第一册)湖南省岳阳市2022-2023学年高一下学期期中数学试题(已下线)难关必刷01集合的综合问题(3种题型30题专项训练)-【满分全攻略】(沪教版2020必修第一册)
4 . 对于非负整数集合S(非空),若对任意
,
,都有
,或者
,则称S为一个好集合,以下记
为S的元素个数.
(1)写出两个所有的元素均小于3的好集合;(给出结论即可)
(2)设集合
,
,若集合S为好集合,求出a,b,c,d所满足的条件;(需说明理由)
(3)若好集合S满足
,求证:S中存在元素m,使得S中所有元素均为m的整数倍
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c8b2714e2f6ddfdd6b05d3b4de1149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b8e5872f45d4b878b0119997cb5bae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84734fbba70c0b45045fabf8090f810b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911cdb689ca80557ce076cb49b3ee498.png)
(1)写出两个所有的元素均小于3的好集合;(给出结论即可)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8518dab1e2a5525a4311a8cca1700cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951836ef5e4cfd3689a94810e0f8d43d.png)
(3)若好集合S满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8893fe5f594a2bd8f8f89eb752c18c40.png)
您最近一年使用:0次
2021-09-08更新
|
493次组卷
|
5卷引用:上海市张堰中学2020-2021学年高一上学期10月月考数学试题
上海市张堰中学2020-2021学年高一上学期10月月考数学试题(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)(已下线)1.1 集合的运算(第4课时)第一章 集合与逻辑(B卷·提升能力)(已下线)难关必刷01集合的综合问题(3种题型30题专项训练)-【满分全攻略】(沪教版2020必修第一册)
名校
解题方法
5 . 设
且
,有限集合
,其中
,若对任意
(
),都有
,则称集合
为“含差集合”.
(1)分别判断集合
和集合
是否是“含差集合”,并说明理由;
(2)已知集合
,集合
,若集合C是“含差集合”,试判断集合
与集合
的关系,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a40142c84be68ee2918c3a8303388c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fce38554d339bf9321a9a853d9000d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d653ef46d3fdca9b38cb4d7f925d4d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14ee48d183ca7898ad51387e41695bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ae331839bce8f3c14d7efd7f9d8915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/708e8394a636a8eba94642aafe78073e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)分别判断集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6944a189dbb61b924b026c497c119259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa438322d6b0d70fc5032d47f66d67c.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88db82f267c6621a6dda2bf5876ec0f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d3332c5473d4d89efd2dc43ab48ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2021高三·全国·专题练习
名校
6 . 已知集合
为非空数集,定义
,
.
(1)若集合
,直接写出集合
及
;
(2)若集合
,
,且
,求证
;
(3)若集
,且
,求集合
中元素的个数的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f43ef1d76f7a33e2aaa5c0f63f53b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ad3621cf61323c074b8b9f075fb65f.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e002c65f15d75af50420ac6173348ef0.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/6d3cd4e59bf251858f03408b59ad1902.png)
(3)若集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3fe454c4e4cefbc55828f34088558a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4d331fa6921e8ebc0b1fc4affd22ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2021-03-20更新
|
941次组卷
|
4卷引用:四川省泸州市泸县泸县第四中学2023-2024学年高一上学期10月月考数学试题
四川省泸州市泸县泸县第四中学2023-2024学年高一上学期10月月考数学试题(已下线)1.1 集合的概念与表示-2021-2022学年高一数学上册同步培优训练系列(苏教版2019)北京市清华大学附属中学2019-2020学年高一上学期期末数学试题(已下线)专题01 集合与常用逻辑用语-【备战高考】2021年高三数学高考复习刷题宝典(压轴题专练)
名校
7 . 设集合
,集合
,如果对于任意元素
,都有
或
,则称集合
为
的自邻集.记
为集合
的所有自邻集中最大元素为
的集合的个数.
(1)直接判断集合
和
是否为
的自邻集;
(2)比较
和
的大小,并说明理由;
(3)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbad957385c90ca3a76e717e4b4e7d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cd2449f6ae27a72287be95a661d8f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a7c616f6f7207a0a38bb707ac2205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfbcd3d6b77c949be81a946ac9ed9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73707750f88b56101446fce394e0faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7f71b0119f257edb8d5060a810de92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)直接判断集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4047b80385ef60ea5e9a1f184e7b948b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecde0085a473948c061942a1728a37c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5002f030017f6f0b34a61b2e15c5a9cb.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64927a98d33b49dc5c6a0e65e5e8eb53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b41788e238eff245e567b58dea3a0003.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5818ede14d21f6df9ef9c2bfe09286c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f4f09e879e859a946b2d5e2d844342.png)
您最近一年使用:0次
2021-07-15更新
|
896次组卷
|
7卷引用:重庆市万州第二高级中学2023-2024学年高一上学期10月月考数学试题
重庆市万州第二高级中学2023-2024学年高一上学期10月月考数学试题 北京市八一学校2020-2021学年高一下学期期末数学试题(已下线)1.2 集合间的基本关系-2021-2022学年高一数学尖子生同步培优题典(人教A版2019必修第一册)(已下线)期末重难点突破专题01-【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)(已下线)高一上学期期中考试解答题压轴题50题专练-举一反三系列(已下线)专题01 集合与常用逻辑用语3-寒假作业单元合订本
21-22高一上·上海浦东新·阶段练习
名校
解题方法
8 . 已知集合
,集合
,集合
.
(1)若集合
满足
,
,求实数
的值;
(2)已知集合
,其中
,由
中的元素构成两个相应的集合:
,
.其中
是有序数对,集合
和
中的元素个数分别为
和
.若对于任意的
,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
和集合
;
②判断
和
的大小关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260d04e2de9a12526fc07132f7dd437f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95c1888ec62cfc8873b387a728548f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b37689518e0dfc28f67d51425fa6caf.png)
(1)若集合
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de04e7bd1c120d55e09bc0ee11be3fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1052d7d61dcf6e1655068a77b550e47f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2fef18cae151fadca86595209c317c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2212c2e3f325683a2f9599a1c661ff59.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/0a2cacc52ffe015e828a4a5f2fe5ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.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/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
②判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
名校
9 . 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)
您最近一年使用:0次
2021-09-23更新
|
739次组卷
|
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)
名校
10 . 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)
您最近一年使用:0次
2021-03-31更新
|
276次组卷
|
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