Question

if n (A)=12 and n(A^B)=5 then find n(A-B=)

Answer 1

Answer:

$n(A) =7$

Step-by-step explanation:

Given, n(A) = 12,n(A^B)= 5

Formula :

n(A-B) =n(A) -n(A^B)

n(A-B) = 12-5

n(A-B) = 7