Question

If U is the Universal set and A and B are two non-empty sets then, n(A’∩ B’) is given by
n(U) – n(A ∪ B)
n(U) – n(A ∩ B)
n(U) – n(A ∪ B)’
n(U) – n(A ∩ B)’

Answer 1

n(A' ⋂ B') = n(U) - n(A ∪ B)

is your answer.

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