已知集合A={X|-2≤X≤4},集合B={X|-3≤X≤3},全集U=R.求Cu(A∩B),CuA∩CuB,Cu(AuB)?
人气：201 ℃ 时间：2019-10-19 20:25:47
解答
依次为：{x|x3},{x|x4},{x|x4},
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