2.23. Let h(r) be the triangular pulse shown in Figure P2.23(a), and let x(t) be the impulse train depicted in Figure P2.23(b). That is, Determine and sketch y(t) = (a) 7 = 4 (b) T = 2 +x x(t) = d(t - kT). k = -x x(t) * h(t) for the following values of T: (c) T = 3/2 (d) T = 1 h(t) x(t) (a) -2T -T 0 T 2T 3T (b)