若
,则
,就称
是伙伴关系集合,集合
的所有非空子集中,具有伙伴关系的集合个数为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd77104cc745d1e0e262122da34482d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345e8915edfec528714515fcaae339a5.png)
更新时间:2022-09-28 22:40:51
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【知识点】 集合新定义
相似题推荐
填空题-单空题
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【推荐1】已知集合
为非空数集,且同时满足下列条件:
(ⅰ)
;
(ⅱ)对任意的
,任意的
,都有
;
(ⅲ)对任意的
且
,都有
.
给出下列四个结论:
①
;②
;③对任意的
,都有
;④对任意的
,都有
.
其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08048db0a4115538251553b85da3ddfb.png)
(ⅱ)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7580ce638933a1c81da5e2e1b656c77a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c443466385f21cd3f06e2e4229add79.png)
(ⅲ)对任意的
![](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)
给出下列四个结论:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca05074e5a317ae45d073962bdf74dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ae88b1b5f825b9824d59edccb908fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c4dffdf9c06c0d11d0410f194afc8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f06a4a9deb51418c20e7e7376cc807.png)
其中所有正确结论的序号是
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【推荐2】设集合
,集合
,若B中恰有4个元素.且定义
,则
中元素的个数是________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc51474b54120493b300a14e566cbc0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d268c0607eef881aa887ee59d368aadf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175d5ec3ea55dec0259248093f5a7702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5231cb0bfedf2f963c1830adfd74aa.png)
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