Question

F.A-II Maths Class 10 00:10:4 -NM III SUBMIT 27 / 30 Q n no: 25 n If n(A U B) = E,n(A) = 0,1(B) = 4 then n(ANB) = 0 -A) -​

Answer 1

Step-by-step explanation:

n(A∪B)=n(A)+n(B)−n(A∩B)−−−−−−−(1)

Given n(A)=7

n(B)=9

n(A∪B)=14

Substituting in 1

14=7+9−n(A∩B)

⇒n(A∩B)=16−14=2