设空集U={1,2,3,4,5,6,7,8,9},Cu(AUB)={1,3},An(CuB)={2.4},求集合B
人气:491 ℃ 时间:2019-08-21 13:17:21
解答
Cu(AUB)={1,3},
AUB={2,4,5,6,7,8,9,} 
An(CuB)={2.4},
B=AUB-{2,4}={5,6,7,8,9}
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