(A' intersect B')

If so :

Let U = {1,2,3,4,5,6,7} A= {4,5,6.7} B={1,5,7}

So if I understand set theory correctly and I am correct on my question the answer would be {1,4,6}

is this correct?

(A∩B)' = A' U B'

(AUB)' = {1,4,5,6,7}' = {2,3}

A' ∩ B' = {4,5,6.7}'∩ {1,5,7}'

={1,2,3}∩ {2,3,4,}

={2,3} as before

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