Question

If n(A)=7,n(B)=13,n(AnB)=4,then n(AUB)= ?

Answer 1

Answer:

n(A U B) = 16

Step-by-step explanation:

n(A)=7

n(B)=13

n(AnB)= 4

n(A+B) = 20

n (AUB) = (7+13) -4

= 16

Answer 2

Step-by-step explanation:

i u hope it's help..........