问题
选择题
已知集合U={1,2,3,4,5,6},A={2,4,5},B={3,4,5},则(∁UA)∪B=( )
A.{3}
B.{4,5}
C.{1,3,4,5,6}
D.{2,3,4,5}
答案
因为集合U={1,2,3,4,5,6},A={2,4,5},B={3,4,5},
所以:CUA={1,3,6};
∴(CUA)∪B={1,3,4,5,6}.
故选:C.
已知集合U={1,2,3,4,5,6},A={2,4,5},B={3,4,5},则(∁UA)∪B=( )
A.{3}
B.{4,5}
C.{1,3,4,5,6}
D.{2,3,4,5}
因为集合U={1,2,3,4,5,6},A={2,4,5},B={3,4,5},
所以:CUA={1,3,6};
∴(CUA)∪B={1,3,4,5,6}.
故选:C.