题目内容
设全集U={1,3,5,7},集合M={1,a-5},MU,={5,7},则实数a= .
8
【解析】略
(07年浙江卷文)设全集U={1,3,5,6,8},A={1,6},B={5,6,8},则(CUA)∩B=
(A){6} (B){5,8} (c){6,8} (D){3,5,6,8}
设全集U={1,3,5,6,8},A={1,6},B={5,6,8},则(CUA)∩B=
设全集U={1,2,3,4,5,6},集合P={1,2,3,4},Q={3,4,5},则P∩(?UQ)= ( )
A.{1,2,3,4,6} B.{1,2,3,4,5} C.{1,2,5} D.{1,2}