名校
1 . 从集合
的子集中选出4个不同的子集,需同时满足以下两个条件:①
、U都要选出;②对选出的任意两个子集A和B,必有
或
.则选法有___________ 种.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5afb74291a8e01b3dcae940798df3fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0f24d1daf9447a4837e7886261c592.png)
您最近一年使用:0次
名校
2 . 设整数集合
,其中
,且对于任意
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d226dbccd278f6d20653d52c4fe28351.png)
(1)请写出一个满足条件的集合
;
(2)证明:任意
;
(3)若
,求满足条件的集合
的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a02459a21167382ebfb095935255cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f947cf70804570839084fb9e8ffdad3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b836bde5106e78caeb728ff3353bee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269c7a915fc171ac7ad84c09883a6dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d226dbccd278f6d20653d52c4fe28351.png)
(1)请写出一个满足条件的集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)证明:任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/484fc0329e7b476cd093d844d09fb20f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5215a6d2915d87bbc65302d184df8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2020-01-13更新
|
931次组卷
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3卷引用:北京市北京理工大学附属中学2021-2022学年高二6月月考数学试题