2. Consider a periodic signal shown below x(t) -10 1 2 3 4 5 6 7 (a) Find the fundamental period of this signal. (b) Consider following two signals, x(t) and x2(t), obtained from the above signal, find their corresponding Fourier transforms: -7 -6 -5 4 -3 x2 (1) 1 12 x1(t) 1 t T -1 01 12