Question

let A and B be two sets such that n(A) =35, n(B) =42 and n(A intersection B)=17 then what will be n(A union B)​

Answer 1

Answer:

60

Step-by-step explanation:

n(A) = 35

n(B) = 42

n(A intersection B) = 17

n(A union B) = n(A)+n(B)-n(A intersection B)

n(A union B) = 35+42-17

                    = 60