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设全集I={1,2,3,4,5,6,7,8}.A={4,5},B={1,2,3,4,5]求(1)logIA(2)logI(A∪B)==是A的补集.

题目详情
设全集I={1,2,3,4,5,6,7,8}.A={4,5},B={1,2,3,4,5]求(1)logIA (2)logI(A∪B)
= =是A的补集 .
▼优质解答
答案和解析
(1)logIA ={1,2,3,6,7,8}(2)logI(A∪B)={6,7,8}