Periodic Discrete Time Signals (Solved Problems)

Signal & System: Solved Questions on Periodic Discrete-Time Signals
Topics discussed:
1. Fundamental period of x[n] = e^(j2n).
2. Fundamental period of x[n] = cos[(3π/4)n].
3. Fundamental period of x[n] = sin[(3π/4)n] + cos[(5π/7)n].

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