Question

n (a)=12 n (b)= 16 and a b are disjoint sets then n(A U B)

ANSWER THIS I WILL MARK YOU AS BRAINLIEST

Answer 1

Brainliest

Correct option is

A

n(A∪B)=n(A)+n(B)

A and B are two disjoint sets.

∴ A∩B=ϕ ⟹ n(A∩B)=0

Since, n(A∪B)=n(A)+n(B)−n(A∩B)

=n(A)+n(B)−0=n(A)+n(B)

Hence, n(A∪B)=n(A)+n(B)