a) Write a function m-file that will calculate the function f(x). f(x) = -2 b) Calculate f(1) in MATLAB and print it in with 15 decimals. c) The taylor series for the function f(x) is given as f(x) = e = 1-2x + (2x)? /2-(2x) /6+ (2x)* /24 +...+(-1)" (2x)" l+... If we only take 6 terms (including constant term) of this series to compute f(I), what is the true percentage error? Use answer in part (b) as true