the function f is defined as f x 5x4 9x3 2 Use the power rule to find the derivative f x and evaluate that derivative at x 1 7 retain at least six decimal Use the forward difference and centered difference formulas to estimate f x at x 1 7 for three different values of the mesh sizes h 0 1 h 0 01 h 0 001 Calculate derivatives using two finite difference formulas h forward difference approximation centered difference approximation exact