Number 47 and 51 plz

35-53 Find the derivative. Simplify where possible. 35. f(x) = cosh 3r 36. f(x) = e cosh r 37. h(x) = sinh(x) 38. g(x) = sinh x 39. G(1) = sinh(In !) 40. F(1) - In( sinh z) 41. f(x) = tanh x 42. H(v) - e tank 2. 43. y - sech x tanh x 44. y - sech(tanh x) 45. g(1) = t coth /12 + 1 46. f(1) = 1 + sinh / 1 - sinh t 47. f(x) = sinh '(-2x) 48. g(x) = tanh '(x3) 49. y = cosh '(sec 0), O = 0 0 52. y = x tanh 'x + Inv1 -x2 53. y - x sinh (x/3) - 19 4 x2