题目内容
设全集I={2,4,6,8},集合A={8,|a-1|},CIA={4,6},则a的值为
A.-3
B.1
C.-3或1
D.3或-1
设全集I={0,1,2,3,4,5,6,7},集合M={0,6,7},N={0,1,2,6},则M∪为
[ ]
A.{0,1,2,6,7}
B.{0,3,4,5,6,7}
C.{1,2,3,4,5,7}
D.{0,1,2,3,4,5,6}
设全集I={1,2,3,4,5},集合S和T满足:S∩T={2},∩T={4},={1,5},则
A.
B.3∈T
C.3∈S,3∈T
D.3∈S,
设全集I={2,4,1-a},A=,若,求a的值.
设全集I=R,A={x|-1<x<2},B={x|-3≤x<或≤x<3},则
(1)A∩B=________;
(2)A∪B=________;
(3)A∪IB=________;
(4)IA∪IB=________;
(5)IA∩IB=________.