If X and Y are two sets such that n (X) =17,n(Y) =23 and n (X U Y) =38, find n (X intersection Y).

If X and Y are two sets such that n (X) =17,n(Y) =23 and n (X U Y) =38

1.	If X and Y are two sets such that n (X) =17,n(Y) =23 and n (X U Y) =38, find n (X intersection Y).
Answer» Sorry who answer send by deepu is wrong the correct answer is 2 So X intersection Y is 12 by send by your friend deepu n(A) +n(B) -n(AUB) = n(A interaction B) Its 2 by formulaa n(a) +n(b) = n(a union b) + n(a intersection b)... its 2