5. Generate x[n] = 2 cos(0.2an+1), 0n 63 using "x=2*cos(0.2*pi.*n+1)" with "n= [0:63]". Use the following MATLAB code to produce y[n] from x[n]: x1 [0 0 0 0 x]; x2=[0 0 0 x 0]; x3 [0 0 x 0 0]; x4 [0 x 0 0 0]; x5=[x 0 0 0 0]; y= (x1+x2+x3+x4+x5)/5; yay (1:64); plot (n,x, 'b',n, y, 'r'). legend ('x[n]', 'y[n]'); Answer the following questions: (a) Write an equation that relates [n] and y[n] for 4 n 63. (b) State two differences between [n] and y[n] for 4 n 63. (c) Try the following MATLAB code to generate [n] by passing [n] through a discrete-time system with impulse response h[n]: h=[0.2 0.2 0.2 0.2 0.2]; z=conv (h, x); z=z (1:64); By plotting [n] and y[n] together, determine if they are equal or not.