名校
1 . 已知集合
,若
,记
,
,定义
.
(1)若
且
,写出
中所有满足条件的元素![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)令
,若
,求证:
为偶数;(
表示集合
中元素的个数).
(3)若集合
,且
中的每一个元素均含有4个0和4个1,对任意
,都有
,求
中最多有多少个元素?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7aebba7f18fef59cdc963c8d337ec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984c76feb97fd60961042a5a0490042e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafff79fec6e6350a0ed069b3dc6ac98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce5cd26a80b1e5487efcff09a5a4a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddae9bd7702d2dea88db75e8ee9eb45.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80721f50d5063cb9f835ea6fc6870285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f399034c383bc43ae4341f0a5ce36f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb504fd980b5dc96bb790760ae6319b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34edc4b51e1c44d8d684c8e4fd4bc13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75109fa19b049ee26a088c607e214bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)若集合
![](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/6e13a814f8e081078dcf3788177affcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f399034c383bc43ae4341f0a5ce36f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2020-11-20更新
|
163次组卷
|
2卷引用:北京市八一学校2020-2021学年高一上学期期中数学试题
2 . 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
表示除
外的
个集合的并集.
(1)若
,判断以下两个数列是否满足条件:①
;②
?(结论不需要证明)
(2)求
的最小值;
(3)判断
是否存在最大值,若存在,求
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/aa0740f39a899b4c789db8a66b7572df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/726d53571993be48b7ffbf5c98a37626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adde1a0b0cd24c0c55da81035740161d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c423502f42e1b1cfb0a69969d6c2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b375f090c551bb2817fa942edbf9bd05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b306a4f3b1a4dae4ccea356845b0020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c423502f42e1b1cfb0a69969d6c2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30149e2b6b2a7d969bc087acba9d5f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e806ca651c85792a0b58b96566616eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d696408691dded253e6d2039107bfc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa2648793a3889448088fa3f9f5aa49.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dfa82966d9f79b7e4d3ccff9e00322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca50deb36fe6d2c9bf0e10567a4b8a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b93985c1677ba03adadbcb7df972f0fd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(3)判断
![](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
2020-07-16更新
|
436次组卷
|
2卷引用:北京市朝阳区人大附中朝阳分校2022-2023学年高一上学期9月月考数学统练试题(1)
3 . 设n为正整数,集合A=
,
,
,
,
,
.对于集合A中的任意元素
和
,记
.
(Ⅰ)当n=3时,若
,
,求
和
的值;
(Ⅱ)当
时,对于
中的任意两个不同的元素
,
,证明:
.
(Ⅲ)给定不小于2的正整数n,设B是A的子集,且满足:对于B中的任意两个不同元素
,
,
.写出一个集合B,使其元素个数最多,并说明由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18693093ebe22c307bd7a0e7546c583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94b9e69fb1d4a48e9c24b04f86e496e.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/6c93fedde9bb8f927c986094275598b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0350c23ae81d21f565637852d6056cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca0a6e55c27d82230a7341c7a9ff90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1a7bce6e7acbd13e268551c7897f4d.png)
(Ⅰ)当n=3时,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9ce0575abdf14f4403b3ddc460cafa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0addc2213ff0303a589dc71690ba43bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272ba5e58ecd8f3369b5964590d834e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a193c5c4a0476eef3339aafa9bca0e61.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/b927eb0becc15f16353f5ca8a36d28c2.png)
(Ⅲ)给定不小于2的正整数n,设B是A的子集,且满足:对于B中的任意两个不同元素
![](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/5c02c2e2b26fe4d99dbd55359ca13a82.png)
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2020-06-03更新
|
1539次组卷
|
7卷引用: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)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)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2020届北京市密云区高三第二学期第二次阶段性测试数学试题北京一零一中学2022届高三上学期统考(二)数学试题北京市中关村中学2022届高三下学期开学测试数学试题北京市第五中学2021届高三上学期10月月考数学试题北京市延庆区第一中学2024届高三上学期9月月考数学试题
名校
4 . 已知a、b、c、d都是区间[1,2]上的实数,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4896478fbf813154d13650b48525178d.png)
您最近一年使用:0次
2020-05-11更新
|
400次组卷
|
2卷引用:上海市实验学校2020-2021学年高一上学期期末数学试题
名校
5 . 设
,
是正整数,满足
.证明:
.
![](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/34b1b5e71aaf8a19aca95ee74a1c59d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa7bbc7b8dd60e3abc0f62b9913fb57.png)
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解题方法
6 . 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
|
1150次组卷
|
7卷引用: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)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)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
7 . 已知
中,
,点
在
上,且
用复数证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b266a453f0ccf78ee5dd8700a612d7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d53505d9c83885b978b3eb170d120d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64537a33f47aa5cfe73de8cf5d9cc41b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/046c3186512a7159bd323e5ee2e51d23.png)
您最近一年使用:0次
2020-01-31更新
|
360次组卷
|
7卷引用:人教B版(2019) 必修第四册 逆袭之路 第十章 复数 本章小结
人教B版(2019) 必修第四册 逆袭之路 第十章 复数 本章小结人教B版(2019)必修第四册课本习题第十章本章小结北师大版(2019)必修第二册课本习题第五章3.2复数乘除运算的几何意义(已下线)7.3.2复数乘、除运算的三角表示及其几何意义【第三课】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)3.2 复数乘除运算的几何意义北师大版(2019)必修第二册课本例题3.2 复数乘除运算的几何意义(已下线)第十章 复数 本章小结
8 . 已知关于
的方程
.
(1)求证:不论
为任何实数,方程总有两个不相等的实数根;
(2)若方程两根分别为
和
,且满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c670ff1eb4f414ccb556e62853e87f6.png)
(1)求证:不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若方程两根分别为
![](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/90c1d04a06d8672a7352685bc7569236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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9 . 设函数
对任意的
、
都满足
,且当
时,
.
(1)求
的值;
(2)证明函数
是奇函数;
(3)若函数
的定义域为
,解关于
不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
(2)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa75d727630a1a1e38d4cdd2164dcb84.png)
您最近一年使用:0次
名校
10 . 已知
定义域为
,对任意
、
都有
,当
时,
,
.
(1)求
;
(2)证明:
在
上单调递减;
(3)解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6f5d45adf0314f93a495f037109bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2e0bb6d63b7bcaee92a470d58cc399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32822a106d217ffdec43557a236f786.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1bb2daa1a89f861e3f3f139e6e21ac.png)
您最近一年使用:0次