Write the formula of n(A union B).
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p(A)+ p(B)-p (A intersection B) i hope this answer is correct
as1644486373:
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Step-by-step explanation:
n(A ∪ B) = n(A) + n(B) – n(A ∩ B) Simply, the number of elements in the union of set A and B is equal to the sum of cardinal numbers of the sets A and B, minus that of their intersection.
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