Question

16 Marks]
Q3)B] Solve the following (3 M each)
1. If n(A) = 7, n( B)= 13, n(A N B) = 4 then n(AU B).
2 If n(A) = 15. n (AUB) = 29. n (AB) = 7 then n(B) = ?​

Answer 1

Answer:

124567890

see the mistake