Question

Match each of the set of on the left described in the roster form with the same set on the right described in the set – builder form.

(i)	{P, R, I, N, C, A, L}	(a)	{x : x is positive integer and is a divisor of 18}
(ii)	{0}	(b)	{x : x is integer and x2 - 9 = 0}
(iii)	(1,2,3, 6, 9,18}	(c)	{x : x is an integer and x + 1 = 1}
(iv)	{3,-3}	(d)	{x : x is a letter of the word PRINCIPAL}

Answer 1

Answer is

(i) → (d), (ii) → (c), (iii) → (a), (iv) → (b).