Chapter 4.9, Problem 2E

Find the dérivative of the function: f(x)=In(e^x-13x)

Sketch the following functions and perform horizontal line test to verify if theyare invertible(one-to-one) or not.1. f(x) = x2. g(x) = x33. h(x) = 3 + x34. k(x) = x45. t(x) = 2 sin (x + 30◦)6. t(x) = cos (x) − 2