U = {1,2,3,4,5,6}, a = {2,3,5}, B = {1,4}, find Cu (AUB) and (CUA) ∩ (cub)

AUB={1,2,3,4,5}
Cu(AUB)={6}
CuA={1,4,6}
CuB={2,3,5,6}
(CuA)∩(CuB)={6}

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