名校
1 . 已知集合
,x、![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13d30ce87fcb597b41622df51a23933.png)
,其中
.定义
,若
,则称x与y正交.
(1)若
,写出
中与x正交的所有元素;
(2)令
,若
,证明:
为偶数;
(3)若
,且A中任意两个元素均正交,分别求出
,14时,A中最多可以有多少个元素.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511b90f652295c5c556f8630ae5985d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13d30ce87fcb597b41622df51a23933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedc27999f4df768614e022b33b414d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b02267ebc7ed6cde9d46408c7279f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5971b046d8c65732389573ad0808c42c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4157967918cabbed7f5d82a291cc262f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80721f50d5063cb9f835ea6fc6870285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a6fc4d929a83295d890ac7c0c09d31.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/08ec5d76db9bd05547932966c9913dc2.png)
您最近一年使用:0次
2023-02-03更新
|
663次组卷
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5卷引用:上海市实验学校2022-2023学年高一上学期期末数学试题
上海市实验学校2022-2023学年高一上学期期末数学试题(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)(已下线)高一上学期期末复习【第一章 集合与常用逻辑用语】拔尖-举一反三系列(已下线)高一上学期期末考试解答题压轴题50题专练-举一反三系列北京市广渠门中学2023-2024学年高二上学期10月月考数学试题
名校
2 . 设集合
中至少有两个元素,且S,T满足:
①对于任意
,若
,都有
;
②对于任意
,若
,则
.
(1)分别对
和
,求出对应的
;
(2)如果当S中恰有三个元素时,
中恰有4个元素,证明:S中最小的元素是1;
(3)如果S恰有4个元素,求
的元素个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61fa126ff595fe6c0b42a31148d6fd65.png)
①对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c36aecba41f6f5ff0d46a29dccaaf01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11a069688e4c797fcf527eab15afa82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8339eab9c659e50db86828b65f825e22.png)
②对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566d386cbedb1c8750f4837633c2af64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a5abe56c019ac914e1fcde1865a747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5718e9c8baa106b447f9fae23e730de.png)
(1)分别对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1014d847a76d84feaa69d22f6c27e98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47661e8894db3bc283922eaf4bfa711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af500a4e28d6f5b38390b7642eb96ed5.png)
(2)如果当S中恰有三个元素时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af500a4e28d6f5b38390b7642eb96ed5.png)
(3)如果S恰有4个元素,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af500a4e28d6f5b38390b7642eb96ed5.png)
您最近一年使用:0次
2022-11-07更新
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613次组卷
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3卷引用: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
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)若集合A中任意两个元素之和都不是整数的平方,则称A为“稀疏集”.已知集合
能分成两个不相交的稀疏集的并集,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a1b26aa2a8eae39c45ab0b5e4b0888.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)若集合A中任意两个元素之和都不是整数的平方,则称A为“稀疏集”.已知集合
![](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
名校
解题方法
4 . 我们学过二维的平面向量,其坐标为
,那么对于
维向量,其坐标为
.设
维向量的所有向量组成集合
.当
时,称为
的“特征向量”,如
的“特征向量”有
,
,
,
.设
和
为
的“特征向量”, 定义
.
(1)若
,
,且
,
,计算
,
的值;
(2)设
且
中向量均为
的“特征向量”,且满足:
,
,当
时,
为奇数;当
时,
为偶数.求集合
中元素个数的最大值;
(3)设
,且
中向量均为
的“特征向量”,且满足:
,
,且
时,
.写出一个集合
,使其元素最多,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be0a1f60498f041589dccfb67c3bbde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50faa5111383084d53ee8a26434a617b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d483285e0e25aa74c75d3368dd6205bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50faa5111383084d53ee8a26434a617b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576a174f70ea49c333046a7e1ec62d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f49fe7103cc7ee651e8439a55c2a309e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962848ecd2c3e636df8574d3e5348ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d935c381da3d9373c2147d25dd07714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71d1197f0849725db71c29c0eaf7561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eee8f3d77056e708ed29290fc314d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3899fa225ad8f95f8d4d448808becebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b36b33e38fb99947ad5cecf0e86cf2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574dd4734831662d4d4cf2f8fda97632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7741a2d39d8f0b1cc77af746efe629d0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8abaee1c69773edf2ab23813457e7133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbd4f6dbf1c8a007f453adbe4736a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe90b06814f2067a471cffa639fd235a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b79675934e436ed9788ea0d3fde6c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2563777fd5675f04e4abe4331899241f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69cd69465b3cd5e5493b763ef83caa3b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e5108b9554f792cf2983ba3389b9ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8acd9af497a2f40eb407d47476f0f4cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4336fe2e523f296e762fb4f3968a5f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdca1393b642fbc6784de187fceef56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69cd69465b3cd5e5493b763ef83caa3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38ea10e8fca3e7c46d57d3720457bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69cd69465b3cd5e5493b763ef83caa3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56143137af67c65ae0feca9ec96c89f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8acd9af497a2f40eb407d47476f0f4cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4336fe2e523f296e762fb4f3968a5f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38ea10e8fca3e7c46d57d3720457bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4363cb382c4f87ab555045a11db7c5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2021-09-06更新
|
1140次组卷
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4卷引用:北京市一零一中学2020-2021学年高一下学期期中考试数学试题