Question

If n(A) = 10, n(An B) = 4, and n(AU B)=18, then determine n(B).​

Answer 1

Hii mate...

good morning....

we know that

=> n(AUB)=n(A)+n(B)-n(AnB)

=>18=10+n(B)-4

=>18=n(B)+6

=>n(B)=18-6=12

I think this will help you

Answer 2

Answer:

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