1.14 Let x(t) and y(t) be given in Figs. P1.14(a) and (b), respectively. Carefully sketch the following signals: - (a) x(t)y(t − 1) (b) x(t - 1)y(-1) - (c) x(t + 1)y(t − 2) - (d) x(t)y( 1 − t) - (e) x(t)y(2 − t) (f) x(2t)y(+1) - (g) x(4 − t)y(t) X\I) T (a) 2 3 t JAI) -2 1 1 2 (b)