Electronics and Communication Engineering - Exam Questions Papers - Discussion


When x(n) is real then the Fourier series coefficients are correlated as __________ .

[A]. a-k = ak*
[B]. ak = ak*
[C]. ak+1 = ak*
[D]. a-k+1 = ak*

Answer: Option A


a-k = a*k for all values of k.

In fact, this equality holds whenever x[n] is real.

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