名校
1 . 定义一个集合A的所有子集组成的集合叫做集合A的幂集,记为P(A),用n(A)表示有限集A的元素个数,给出下列命题:① 对于任意集合A,都有
;② 存在集合A,使得
;③ 用
表示空集,若
,则
;④若
,则
;⑤ 若
,则
,其中正确的命题个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb01841b3465ff7227a321bf6b580d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/484e88c80e63cdc39fefca6edbb64236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e791b042714376407f06aa0492bc8ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45e81220eb7f2c0d16331c4052f82a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3b483dda0b49a0c990ea49ebc15b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffe6162101e929e2b58908ecadea68.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
2017-07-15更新
|
779次组卷
|
2卷引用:福建省福州市八县(市)一中(福清一中,长乐一中等)2016-2017学年高二下学期期末联考数学(文)试题