In the parts below your answer must be entered using sqrt(). (Use of sin() and cos () is disabled.) (A) Compute the discrete Fourier transform of f = 2 2t on [-1,3) with length 4. 7{f} ( (B) Compute the discrete Fourier transform of g = - (t + 1) on [-2, 2) with length 3. F{3} = [