Question

Solve ..... if n(A) = 15 , n(AB)=29,n(AB)=7 Find n(B)

Answer 1

Answer:

Step-by-step explanation:

n(aub)= n(a)+n(b)-N(a intersection b)

29=15+n(b)-7

29-7=15+n(b)

22-15=n(b)

N(B)=7