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

题目简介

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

题目详情

已知集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则∁U(A∪B)=(  )
A.{1,6}B.{4,5}C.{2,3,7}D.{2,3,4,5,7}
题型:单选题难度:中档来源:不详

答案

由A={2,4,5,7},B={3,4,5},得到A∪B={2,3,4,5,7},
因为集合U={1,2,3,4,5,6,7},所以∁U(A∪B)={1,6}
故选A

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