Question

If n(AUB) = 5, n(B) = 3 and n(A) = 4, then n(
A
-(a) 2
(b) 3
(c)
10
B) is equal to
4
(d)
5 ​

Answer 1

Step-by-step explanation:

n(AUB)=n(A)+n(B)-n(aintesection b)

5=3+4-x

then x=2 is the write answer