题目内容
设全集是U={1,2,3,4,5,6},M={y|y=2x-1,x=1,2,3},N={4,5,6},则N∪CUM=( )A.{2}
B.{2,4,5,6}
C.{1,2,3,4,6}
D.{4,6}
【答案】分析:根据题意,N={4,5,6},M={y|y=1,3,5},则CUM={2,4,6},进而可得答案.
解答:解:∵N={4,5,6},M={y|y=1,3,5},U={1,2,3,4,5,6},
∴CUM={2,4,6},
∴则N∪CUM={2,4,5,6}
故选答案B.
点评:运用两个集合的运算法则.
解答:解:∵N={4,5,6},M={y|y=1,3,5},U={1,2,3,4,5,6},
∴CUM={2,4,6},
∴则N∪CUM={2,4,5,6}
故选答案B.
点评:运用两个集合的运算法则.
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