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, aER. Note: An example of an appropriate composite square root function would be g(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(x) using the chain rule. 2. Using the function g you constructed for part A, find the instantaneous rate of change at x = 0.123