题目内容
(1)已知集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(uA)∪(uB)=(A){1,6} (B){4,5}
(C){2,3,4,5,7} (D){1,2,3,6,7}
D
解析:由题意可得A∩B={4,5}
又(uA)∪(uB)=u(A∩B)
∴D正确.
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题目内容
(1)已知集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(uA)∪(uB)=(A){1,6} (B){4,5}
(C){2,3,4,5,7} (D){1,2,3,6,7}
D
解析:由题意可得A∩B={4,5}
又(uA)∪(uB)=u(A∩B)
∴D正确.