Hi all what I have done is here hope someone can help me find out

A certain function is differentiated numerically. Suppose we known that for this class of functions, the error is 001.6) as h > 0, where h is the grid spacing. When the grid spacing is halved, the error is usually expected to decrease by a factor of 2 Use the finite-difference formulae from page 126 of the notes (print version) to find approximate values of the derivatives f; in the following table. Use the centred-difference approximation wherever possible. Enter your answers to two decimal places accuracy. I f;- Number Number I Number Number