Question

If A and B are two sets such that n(A)=17, n(B)=23 and n(A∪B) =38, then find the number of elements in exactly one of A and B. ​

Answer 1

Answer:

2

Step-by-step explanation:

n(A∩B)=n(A)+n(B)−n(A∪B)

n(A∩B)=17+23−38=2

Answer 2

Answer:

We know,

n(A∩B)=n(A)+n(B)−n(A∪B)

n(A∩B)=17+23−38=2