Question

If A is subset of B , n(A) = 3 , n(B) = 5 then n(A union B) =
(a) 3
(b) 5
(c) 8
(d) -2​

Answer 1

Answer:

If A is subset of B , n(A) = 3 , n(B) = 5 then n(A union B) =5