Find the indicated derivatives of the following functions. No need to simplify. a. Find f'(x) where f(x) = arctan (1+ x) dy dx b. Find where y is implicit defined by sin(2yx) - sec (y2) - x = arctan () c. Find f'(x) where f(x) = (1 + x) /= (That's (1+x) raised to the power ) d. Find (the 47th derivative of y with respect to x at x=2) where y = In (1 + 2x) dx47x=2