Find the signal energy or power of the signals : (a) x1(t) = 4e⁻ᵗ/¹⁰rect (t-4 /3), (b) A periodic signal of fundamental period 10 described over one period by x2(t) = -3t, -5 < t 5:

Plot x1 over 2 < t < 6 and x2 over -5 < t < 5, where you define t as a vector with time intervals of 0.1