Let the value between 0 and 1 be taken = 0.5 So, putting this value in the given equation we can check the equation. (i) a2 - 1 > 0 ⇒ (0.5)2 - 1 = 0.25 - 1 = - 0 75 > 0 ∴ This equation is not true. (ii) a2 + 1 > 0 ⇒ (0.5)2 + 1 = 1.25 > 0 (true) (iii) a2−a > 0 ⇒ a(a−1) > 0⇒ (0.5)(0.5 - 1) = - 0.25 > 0 (false) ∴ (ii) is the correct answer.