题目内容
设U={x∈Z|0<x≤10},A={1,2,4,5,9},B={4,6,7,8,10},C={3,5,7},求A∩B,A∪B,∁U(A∪C),(∁UA)∩(∁UB).
考点:交、并、补集的混合运算
专题:集合
分析:用列举法表示全集U,进而结合A={1,2,4,5,9},B={4,6,7,8,10},C={3,5,7},由集合交集,并集,补集的定义,可得答案.
解答:
解:∵U={x∈Z|0<x≤10}={1,2,3,4,5,6,7,8,9,10},
A={1,2,4,5,9},B={4,6,7,8,10},C={3,5,7},
∴A∩B={4},
A∪B={1,2,4,5,6,7,8,9,10},
CU(A∪C)={6,8,10},
(CUA)∩(CUB)={3}.
A={1,2,4,5,9},B={4,6,7,8,10},C={3,5,7},
∴A∩B={4},
A∪B={1,2,4,5,6,7,8,9,10},
CU(A∪C)={6,8,10},
(CUA)∩(CUB)={3}.
点评:本题考查的知识点是集合的交集,并集,补集及其运算,难度不大,属于基础题.
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