设U={x∈Z|0<x≤10},A={1,2,4,5,9},B={4,6,7,8,10},求A∩B,A∪B,(CU A)∩(CU B).
题型:解答题难度:一般来源:不详
设U={x∈Z|0<x≤10},A={1,2,4,5,9},B={4,6,7,8,10},求A∩B,A∪B,(CU A)∩(CU B). |
答案
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}, ∴A∩B={4}, A∪B={1,2,4,5,6,7,8,9,10}; (CU A)∩(CU B)=CU(A∪B)={3}. |
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