2.8. Determine and sketch the convolution of the following two signals: 0i1 12. elsewhere [1+1, 2-1, 0, h(!) = 8tr + 2) +28(1 + 1) 2.21. Compute the convolution y[n] x[n] h[n] of the following pairs of signals: x[n] = "u[n], a 8 h[n] = 8"u[n]. 11111 -1 0 1 2 3 4 5 (b) x[n] [n] - a"u[n] (c) x[n] (u[n- 4] = h[n] = 4^2 - x2] (d) x[n] and h[n] are as in Figure P2.21. t -21 -1 Figure P2.21 2.23. Let h(r) be the triangular pulse shown in Figure P2.23(a), and let x(t) be the impuise train depicted in Figure P2 23(b). That is, 2014) xinh Determine and sketch y(t)= x() (a) T = 4 (b) T = 2 hit) 1 x({}= 0 - (a) ......... 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 x(t) = 8(t-KT). Au-d T 2T [[]] fbl h(t) for the following values of T: (c) T 3/2 (d) 7 = 1 Figure P2.23 D