Solve using Matlab

Exercise 6.2 The series approximation of the cosine function cos(x) using n terms is given by: 22(1-1) 2(k-1) - - - 31-13*-* - ade ) --? (1-3) (2:-) where Ck = for k=1 for k2 (a) Write a MATLAB function file named fn.cos for computing for (I) for 0