设全集u等于{1,2,3,4,5,6},A={1,3,5}, 则A是U的补集的所有非空子集的个数
人气：272 ℃ 时间：2019-09-22 08:43:14
解答
A的补集{2,4,6},它的非空子集的个数为7吧过程{2}{4}{6}{2,4}{4,6}{2,6}{2,4,6}总共7个
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