Note: u(t) is continuoustime unit step function, ???????? is discretetime unit impulse functio 1please make sure to

Note: u(t) is continuous‐time unit step function, ????ሾ????ሿ is discrete‐time unit impulse functio

1please make sure to write legibly if your writing is bad, write the letters and symbols properly.

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Determine whether or not each of the following signals is periodic. For periodic signals, determine their periods. a) x1[n] = E-o{8[n – 3k] – 2 8[n –1- 3k]}. First plot the signal x.[n]. b) x2[n] = - x1[-n – 1]. First plot the signal x2[n]. c) x,(t) = et sin(2nt) d) x2(t) = Even{sin(4nt) u(t)}. First plot the signal x2(t) %3D k=-00 %3D Determine whether or not each of the following signals is periodic. For periodic signals, determine their periods. a) x1[n] = E-o{8[n – 3k] – 2 8[n –1- 3k]}. First plot the signal x.[n]. b) x2[n] = - x1[-n – 1]. First plot the signal x2[n]. c) x,(t) = et sin(2nt) d) x2(t) = Even{sin(4nt) u(t)}. First plot the signal x2(t) %3D k=-00 %3D