Use the Fast Fourier Transform Algorithm to compute the trigonometric interpolating polynomial of degree 4 on [, ] for the following functions. a. f (x) = (x ) b. f (x) = |x| c. f (x) = cos x 2 sin x d. f (x) = x cos x2 + ex cos ex

Mt"E* v#r. * nnr.Sni{urls-,4 rlrvrcâ‚¬;c^.< - L,,dx ,\ rvr..t3 ttN- , tht vec&,v tffiil -"Jni B y W ffiil lr,o@tA jocs+oB i" tfiilil A/ d= ffi iffiill...