1 . 设n是不小于3的正整数,集合
,对于集合Sn中任意两个元素
.定义
.若
,则称A,B互为相反元素,记作
或
.
(1)若n=3,A=(0,1,0),B=(1,1,0),试写出
,
,以及A·B的值;
(2)若
,证明:
;
(3)设k是小于n的正奇数,至少含有两个元素的集合
,且对于集合M中任意两个不同的元素
,都有
,试求集合M中元素个数的所有可能的取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1df553c77cd4898d2357fe3cb100c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835c26186c32793dfcdfe62efe2fb701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfced31176260029e828aca4b4e6c5ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b65bdb3f640c065a6b6603f15ec346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/601614c932fe6d852fff76488eebcce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab1d8e0b76ed11ddddbc2c14554000b.png)
(1)若n=3,A=(0,1,0),B=(1,1,0),试写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21778974e8491fe2a158e70b459217be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555e0114c5a4605465900d7e165a299e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35965a828e9c5dfe0b9590e8e445b919.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253b595136f7db19c07501ad2b6c3d52.png)
(3)设k是小于n的正奇数,至少含有两个元素的集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ccb04581eec79f16945eed1ad128369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa70167b6e11ba4b44cd8b64279c8876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca479fb8f5491f14fcb5139f2249beb.png)
您最近一年使用:0次
名校
2 . 已知集合
并且
.定义
(例如:
).
(1)若
,
,集合A的子集N满足:
,且
,求出一个符合条件的N;
(2)已知集合
满足:
,
,其中
为给定的常数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a7021c45e2fed11d8b3079477d056a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90edcabb371b5698ed97986bdacc798d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66013cb08f923b6c0ae943aa017d3647.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c0131e62f174b8eb65a1c20095390c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522954ce536d559cf03638d87fad504c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e3b83ccd27fced5b6f12d4737d0f92a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578632629c97349c61efb26c6acda273.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8cfe3398b682019dbe75b160ec8411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1e869016b45f1560da47ba9dbe7ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d6b17f4e51916675e797cc9b2e95346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40451e0f90ba4df0cb35143b93303a22.png)
您最近一年使用:0次