Question

if na(A)=10 n(B) =8 n(aUb)=30 find out n(AΠB)​

Answer 1

Answer:

n(aub)=n(a)+n(b)-n(anb)

30=10+8-n(anb)

n(anb)=18-30= -12

Answer 2

Step-by-step explanation:

Given:

n(A)=10

n(B)=8

n(AUB)=30

Formula:

n(AUB)=n(A)+n(B)-n(AnB)

30=10+8-n(AnB)

30-18=-n(AnB)

12=-n(AnB)

n(AnB)=-12