已知U={1,2,3,4,5,6,7,8},A={1,3,5,7},B={2,4,5}则∁U(A∪B)()A.{6,8}B.{5,7}C.{4,6,7}D.{1,3,5,6,8}-数学

题目简介

已知U={1,2,3,4,5,6,7,8},A={1,3,5,7},B={2,4,5}则∁U(A∪B)()A.{6,8}B.{5,7}C.{4,6,7}D.{1,3,5,6,8}-数学

题目详情

已知U={1,2,3,4,5,6,7,8},A={1,3,5,7},B={2,4,5}则∁U(A∪B)(  )
A.{6,8}B.{5,7}C.{4,6,7}D.{1,3,5,6,8}
题型:单选题难度:偏易来源:湖北

答案

∵U={1,2,3,4,5,6,7,8},A={1,3,5,7},B={2,4,5}
∴A∪B={1,2,3,4,5,7},
∴Cu(A∪B)={6,8}
故选A

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