∵含有n个元素的集合的子集共有:2n个,
∴集合M={1,2,3,4,5}的子集个数25=32.
故选A.
集合M={1,2,3,4,5}的子集个数是( ) A.32 B.31 C.16 D.15
集合M={1,2,3,4,5}的子集个数是( )
A. 32
B. 31
C. 16
D. 15
A. 32
B. 31
C. 16
D. 15
数学人气:709 ℃时间:2020-04-24 11:17:55
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