问题
选择题
已知全集U={1,2,3,4,5,6},A={2,4,6},B={1,3},则A∩CUB等于( )
A.∅
B.{2,4,6}
C.{2,4,5,6}
D.{1,2,3,4,6}
答案
∵U={1,2,3,4,5,6},A={2,4,6},B={1,3},
∴CUB={2,4,5,6}
∴A∩CUB={2,4,6}
故选B
已知全集U={1,2,3,4,5,6},A={2,4,6},B={1,3},则A∩CUB等于( )
A.∅
B.{2,4,6}
C.{2,4,5,6}
D.{1,2,3,4,6}
∵U={1,2,3,4,5,6},A={2,4,6},B={1,3},
∴CUB={2,4,5,6}
∴A∩CUB={2,4,6}
故选B