Q14 of 22 Page 2

Let A = {1, 2, 3, 4, 6}. Let R be the relation on A defined by{(a, b) : a, b ∈ A, b is exactly divisible by a}.  Find (i) R in roster form, (ii) domain of R, (iii) range of R.


(i) R = {(1,1), (1, 2), (1,3), (1,4), (1,6), (2,2), (2,4), (2,6), (3,3), (3,6), (4,4), (6,6)}
(ii) Domain = A
(iii) Range = A

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