用
表示集合
中元素的个数,设
为集合,称
有序三元组,如果集合
满足
,且
,则称有序三元组
为最小相交,由集合
的子集构成的所有有序三元组中,最小相交的有序三元组的个数是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a4c1cc01a29960cd990ae81f1c80b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63554db31a3246ed1e63f5e57781ea5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbb8010e64b124eb2a9c3cb0d56ad1f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d614b62317dbf66e3eef15b51f89417e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63554db31a3246ed1e63f5e57781ea5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f12a019ea4cab2a4143b39043157ed.png)
更新时间:2020-01-11 19:58:36
|
【知识点】 集合新定义
相似题推荐
填空题-单空题
|
较难
(0.4)
名校
【推荐1】已知集合
,集合
满足:①每个集合都恰有4个元素;②
.集合
中元素的最大值与最小值之和称为集合
的特征数,记为
,则
的最大值与最小值的差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8ba1e4fc97b6aae170ba402f00a06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fa157b4f65f3a9aa1f7f82de02e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d343d79a12548d8e4f5b1dd6dd9bf2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed5791766a68be89ceda7f1505e4fd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e819b87f90651d89fcd258c276294e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977596d92064cd96041927d539b09731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eced34833fc5ee8ad2c6817ced270988.png)
您最近一年使用:0次
填空题-单空题
|
较难
(0.4)
名校
【推荐2】设集合
,若非空集合
同时满足①
,②
(其中
表示
中元素的个数,
表示集合
中最小元素),称集合
为
的一个好子集,
的所有好子集的个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12247711394ed07a2f6a7c27f73eea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e782887fa9cd8934bc19cc1288d5f51c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a462820b4535b1fa5a75c7c6e9547b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8279d9dd0b7750953cb9e2098b3b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9b9765625c0a2b3a7c6850983f3400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
您最近一年使用:0次