HW10_3 handwork Let f(x) -x cos(x)- x2sin(x). a) determine the true value of f,(x) at =2.9, 3.0,3.1,3.2 b) evaluate the function f(x) at the same 4 points c) Use the results from b) to estimate the derivative at all points using forward (O(h)), backward (O(h)) and centered (O(h) formulas (where possible) d) compute et, the true relative errors Present your results in a table