Question

If n(A)= 5, n(AUB)= 9
n(A^B)= 2. find n(B) = ?​

Answer 1

Step-by-step explanation:

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

9 = 5 + n(B) - 2

n(B) = 6

Answer 2

Answer:

I think n(A^B) is n(A intersection B) , if it is correct then, n(B) = 6.

this is your answer, I hope it will help you dear.