已知集合A={4,5,7,9},B={3,4,7,8,9},全集U=A∪B,则集合∁ U (A∩B)=( ) A.{4
1个回答
∵集合A={4,5,7,9},B={3,4,7,8,9},
∴全集U=A∪B={3,4,5,7,8,9},A∩B={4,7,9 },
∴集合∁
U
(A∩B)={3,5,8},
故选C.
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