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},
, (CUA)(CUB),
答案:={1,2,4,5,6,7,8,9,10}, CUA={3,6,7,8,10}  CUB={1,2,3,5,9}
(CUA)(CUB)={1,2,3,5,6,7,8,9,10}, ={4} 
考察集合的运算和分类讨论思想
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