Given f(x) = 7e0.5x 5x2 + sin (3x) Write a c+ program to find and print: a) f'(x = 2.5) exact answer b) f'(x = 2.5) approximate answer h = step size = 0.4 c) Repeat step b but reducing h=0.4 by a factor of 2 until the relative error = 10-4 = 0.0001