For each of the following signals, determine whether or not it is periodic, and if it is periodic, find (1) its fundamental period. (2) its fundamental frequency in radians per second (or in radians per sample), and (3) its fundamental frequency in Hertz. x[n] = sin (pi n/3) + cos (pi n/2) x[n] = n x[n] = 1 x[n] = sin(6 pi n/7 – 1) x[n] = cos(pi n^2/4) x[n] = 2 cos(pi n/2)cos(pi n/4) x[n] = 2cos (pi n/4) – sin(pi n/8)+ cos(pi n/2 – pi/6) x(t) = sin(2t) x(t) = e^pi j t x(t) = e^(3+pi j)t x(t) = 2 cos(2t + pi/5) x(t) = e^j(pi t – 2) x(t) = [cos(4t + pi/3)]^2 x(t) = sigma^infinity_n=-infinity e^-(t-n)u(t – n)

16 4 - For each of the following signals, determine whether or not it is periodic, and if it is periodic, find (1) its fundamental period. (2) its fundamental frequency in radians per second (or in radians per sample), and (3) its fundamental frequency in Hertz. x[n] = sin (pi n/3) + cos (pi n/2) x[n] = n x[n] = 1 x[n] = sin(6 pi n/7 - 1) x[n] = cos(pi n^2/4) x[n] = 2 cos(pi n/2)cos(pi n/4) x[n] = 2cos (pi n/4) - sin(pi n/8)+ cos(pi n/2 - pi/6) x(t) = sin(2t) x(t) = e^pi j t x(t) = e^(3+pi j)t x(t) = 2 cos(2t + pi/5) x(t) = e^j(pi t - 2) x(t) = [cos(4t + pi/3)]^2 x(t) = sigma^infinity_n=-infinity e^-(t-n)u(t - n)

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images - For each of the following signals, determine whether or not it is periodic, and if it is periodic, find (1) its fundamental period. (2) its fundamental frequency in radians per second (or in radians per sample), and (3) its fundamental frequency in Hertz. x[n] = sin (pi n/3) + cos (pi n/2) x[n] = n x[n] = 1 x[n] = sin(6 pi n/7 - 1) x[n] = cos(pi n^2/4) x[n] = 2 cos(pi n/2)cos(pi n/4) x[n] = 2cos (pi n/4) - sin(pi n/8)+ cos(pi n/2 - pi/6) x(t) = sin(2t) x(t) = e^pi j t x(t) = e^(3+pi j)t x(t) = 2 cos(2t + pi/5) x(t) = e^j(pi t - 2) x(t) = [cos(4t + pi/3)]^2 x(t) = sigma^infinity_n=-infinity e^-(t-n)u(t - n)

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