Question

If n(a)=10; n(B) =5, n(AnB).
What is n (AUB)=​

Answer 1

Answer:

N(AuB) = n(A) +n(B)-n(AnB)

n(AuB) = 10+7-5

n(AuB) = 17-5

n(AuB) = 12

Answer 2

Answer:

The relation between n (A), n (B), n (A ∩ B) and n (A U B) can be given as follows : n (A U B) = n (A) + n (B) - n (A ∩ B) - Here, the union of A & B is equal to the sum of elements of A and elements of B and then subtracting the intersection of A & B from it.

Step-by-step explanation:

hope it helps you