2nd PUC Mathematics Series 4 December 3, 2020December 22, 2020wefru PUC Science 2nd Year Mathematics Series-4 quiz 0 Created on December 02, 2020 By wefru 2nd PUC Mathematics Series 4 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 31. If N be the set of all-natural numbers, consider f : N → N such that f(x) = 2x, ∀ x ∈ N, then f is one-one onto one-one into many-one onto None of these 2 / 10 32. Let f : R → R be a function defined by f(x) = x3 + 4, then f is injective surjective bijective none of these 3 / 10 33. Let * be a binary operation on set of integers I, defined by a * b = a + b – 3, then find the value of 3 * 4. 7 2 3 1 4 / 10 34. If * is a binary operation on set of integers I defined by a * b = 3a + 4b – 2, then find the value of 4 * 5. 30 10 20 50 5 / 10 35. Let * be the binary operation on N given by a * b = HCF (a, b) where, a, b ∈ N. Find the value of 22 * 4. 2 1 0 6 6 / 10 36. If sin-1(x2 – 7x + 12) = nπ, ∀ n ∈ I, then x = 4 2 5 6 7 / 10 37. cot(π/4 – 2cot-1 3) = 7 2 1 3 8 / 10 38. If 6sin-1 (x2 – 6x + 8.5) = π, then x is equal to 2 3 4 5 9 / 10 39. 2tan-1(cos x) = tan-1(2cosec x) π/4 2 0 6 10 / 10 40. The value of sin (2tan-1 (0.75)) is equal to 0.96 1.2 3.2 5.2 Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz