In the following problems find the fundamental period of signals and determine periodicity. (a) Find the fundamental
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In the following problems find the fundamental period of signals and determine periodicity.
(a) Find the fundamental period of the following signals, and verify it
(i) x(t) = cos(t + π/4),
(ii) y(t) = 2 + sin(2π t),
(iii) z(t) = 1 + (cos (t)/sin(3t))
(b) The signal x1(t) is periodic of fundamental period T0, and the signal y1(t) is also periodic of fundamental period 10T0. Determine if the fo-lowing signals are periodic, and if so give their fundamental periods
(i) z1 (t) = x1 (t) + 2y1 (t)
(ii) v1(t) = x1(t)/y1 (t)
(iii) w1 (t) = x(t) + y1 (10 t)
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