若集合{1,3,5,7},集合{2,3,4,5.} 1.求A∩B的集合 2.求AUB的集合
人气：465 ℃ 时间：2020-05-24 03:25:56
解答
A∩B={3,5}
A∪B={1,2,3,4,5,7}
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