Question

If n(u) = 700, n(A) = 200, n(B) = 300 and
n(An B) = 100, find n A'B).​

Answer 1

Answer:

n(A∩B)=n(A∪B)

=n(u)−n(A∪B)

=n(u)−{n(A)+n(B)−n(A∩B)}

=700−{200+300−100}=300

Step-by-step explanation:

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