Calculate the Taylor polynomials 72 and 73 centered at x = a for the function f(x) = 19 In(x + 1), a = 0. (Express numbers in exact form. Use symbolic notation and fractions where needed.) T2(x) = T3(x) =Calculate the Taylor polynomials 72 and 73 centered at a = 0 for the function f(x) = cosh (4x). (Use symbolic notation and fractions where needed.) T2(x) = Ta(x) =