Question

if A and B are two sets such that n( AUB)= 17 and n(AnB)=5
find n(A) + n( B)​

Answer 1

Answer:

2

Step-by-step explanation:

We know,

We know,n(A∩B)=n(A)+n(B)−n(A∪B)

We know,n(A∩B)=n(A)+n(B)−n(A∪B)n(A∩B)=17+23−38=2