X}z t[ CXg 317010
Signals and Systems Part 11/ Solutions S313 We see that the system is timeinvariant from T 2T 1x(t T) = T 2y (t T)l = y 2(t T), Tx(t T) = y 2(t T) (b) False Two nonlinear systems in cascade can be linear, as shown in Figure S310
