Note: u(t) is continuoustime unit step function, ???????? is discretetime unit impulse functio 1please make sure to write legibly if your writing is bad, write

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.

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 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