..:: Miscellaneous on Digital Signal Processing related Questions and Answers

Miscellaneous on Digital Signal Processing related Questions and Answers

Question : What is output signal when a signal x(t)=cos(2*pi*40*t) is sampled with a sampling frequency of 20Hz?
1. cos(pi*n)
2. cos(2*pi*n)
3. cos(4*pi*n)
4. cos(8*pi*n)
Answer : 3 - cos(4*pi*n)

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