Let = a) (3 pts) Show that f'(x) = 1 COS X 1 In f(x) = n ( 2 1 + sin x 1 - - sin x (You have to show all your steps and calculations). b) (3 pts) Use that to show that the value of C/4 1 co cos(x) (You have to show how you used FTC) dx 1 dr = (In(3+22)