Mathematics · Signals and Systems
Consider a discrete-time periodic signal x[n] with fundamental period N = 5. Let its discrete-time Fourier series (DTFS) representation coefficients be a0 = 1, a1 = 3j, a2 = 2j, a3 = -2j, and a4 = -3j. The value of the summation Σn=04 x[n] sin(4πn5) is:
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