A. Choose a composite square root function of the form (g . f )(x) where the function g is a square root function and f is any polynomial function more complicated than y = ax, a e R. Note: An example of an appropriate composite square root function would be (g . f)(x) = V2x -3. However, you must pick a function other than this example for this task. 1. Show the step-by-step computation of the correct derivative of (g . f)(x) using the chain rule. 2. Using the function (g . f )(x) you constructed for part A, find the instantaneous rate of change at x = 0.123