Description : Given A = {–2, –1, 0, 1, 2}, which of the following relations on A have both domain and range equal to A? -Maths 9th
Last Answer : (d) (i) and (iii)Let us examine the domain and range of the each relation individually: (i) R : is equal to means R = {(a, b) : a = b, a ∈ A, b ∈A} ∴ R = {(-2, -2), (-1, -1), (0, 0), (1, ... = {-2, -1, 0, 1} and range = {-1, 0, 1, 2}. ∴ Relations given in (i) and (iii) satisfy the given condition.