CuA=｛1,2,6,7,8｝
CuB=｛1,2,3,5,6｝
(CuA)∩(CuB)=｛1,2,6｝
(CuA)∪(CuB)=｛1,2,3,5,6,7,8｝
设全集U={1,2,3,4,5,6,7,8,9},A={3,4,5,6},B={4,7,8}求CuA,CuB,(Cua)∩(CuB),(CuA)∪(CuB)
设全集U={1,2,3,4,5,6,7,8,9},A={3,4,5,6},B={4,7,8}求CuA,CuB,(Cua)∩(CuB),(CuA)∪(CuB)
(2)A∩B,A∪B,Cu(A∩B),Cu(A∪B)
(2)A∩B,A∪B,Cu(A∩B),Cu(A∪B)
数学人气：344 ℃时间：2019-10-17 05:09:58
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