Question

If n(U) = 50, n(A) = 30, n(A∩ B) = 12 and n(A ∪ B)′ = 15,then find


a. n(B)
b. n(B – A)​

Answer 1

Answer:

n(b)=17,n(b-a)=5 I hope it helps you please mark me as brainliest by A L V Sahasraby using n(aub)=n(a)+n(b)+n(anb),n(b)=(n(b-a)+n(anb) formulae