题目内容
【题目】设全集U={1,2,3,4,5,6,7},P={1,2,3,4,5},Q={3,4,5,6,7},则P∩(UQ)=( )
A.{1,2}
B.{3,4,5}
C.{1,2,6,7}
D.{1,2,3,4,5}
【答案】A
【解析】解:∵全集U={1,2,3,4,5,6,7},Q={3,4,5,6,7},
∴CUQ={1,2},由P={1,2,3,4,5}得,P∩(CUQ)={1,2},
故选A.
根据全集U和补集的运算求出CUQ,再由交集的运算求出P∩(CUQ).
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