Question

Using venn diagram for two set a and b prove that n(a u b ) = n(b-a) + n (a intersection b)the best ans will be marked brainliest​

Answer 1

Answer:

Step-by-step explanation:

to prove this i will show that RHS =LHS

let a,b are disjoint sets

n(aub) = n(a+b)

          =n(a) +n(b)

          = n(a-b) +n(b-a)

      please mark me as the brainliest