Let A 1 2 3 4 6 Let R be the relation on A defined by 3 marks a b a nb...........

Let A = {1, 2, 3, 4, 6}. Let R be the relation on A defined by       (3 marks)

{(a, b): a, b ∈ A, b is exactly divisible by a}.

(i) Write R in roster form

(ii) Find the domain of R

(iii) Find the range of R.