(A∪B)={1,2,3,5} CI(A∪B)={4}(A∩B)={3} CI(A∩B)={1,2,4,5}
若全集I={1,2,3,4,5,6}A={1,3}B={2,3,5}则CI(A∪B)=什么 CIA∩B=什么
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