Question

If n(A)=15 and n(B)=20 and n(A∩B)=10 then find n(A∪B)?

Answer 1

Answer:

-» n( a ∪ b) = 35

Step-by-step explanation:

Given,

n(a) = 20

n(b) = 25

n( a ∩ b ) = 10

-» n(a ∪ b) = n(a) + n(b) - n( a∩b)

-» n(a ∪ b ) = 20 + 25 - 10

-» n( a ∪ b) = 35

HOPE THIS HELPS YOU..........

Answer 2

Step-by-step explanation:

hope it's help you................