If n(A) = 7, n(B) = 6, n(A U B) = 10, then find n(AuB
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Answer:
A ∩B =3
Step-by-step explanation:
n(A)+n(B)-n(A∪B) = n(A∩B)
=7+6-10=n(A∩B)
13-10 = 3
n(A∩B)=3
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