PART A DS Find the first and second total derivatives of X f (x) = - Vx2+ a2 where a is a constant. PART B If - in Part A - x = a tan 0 , show that f(x) = g(0) = sine PART C Find the first and second total derivatives of g (0). PART D Differentiate the following functions, where a is constant: g(x) = In(x* + x-") h(x) = x* f (x) = In (a* + a-x) 2 |Page