1. (4 points) Find y' if (In r)" - (Iny). Show steps. 2. Consider the following function f (1) 712+ 2) 2 (24 + 4) (a) (1 point) Determine the domain of the function f. (b) (5 points) Use logarithmic differentiation to find the derivative of the function. Express f solely in terms of x. Show steps. (c) (1 point) Determine the domain of the derivative f'. 3. (3 points) Find f' if f(x) - arctan [9(log, z) - VIA 4. (5 points) If a and b are positive numbers, find the absolute extreme value of f(z) - (2 x)" r, 0