"please all a,b,c,d,e Problem 5 A continuous-time signal is shown below. Sketch and label carefully each of the following signals: (a) x(t - 1) (b) x(2-t) (c) x(2t + 1) (d) x(4-t/2) (e) [x(t) + x(-t)]u(t) -2 -1 1 2 t -1"