Please help with following:

7. (10 points) Let f = sin('.r2) + COST. The graph Of I f 3 is shown below. 'iiiii (a) Find the degree Maclaurin polynomial Of J (:r) and this to estimate J (0M). (b) Use thc given graph to show that thc error in thc approximation obtaincNl in part n) is loss than