Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 20 (Q.No. 23)
23.
For real and odd signals, the Fourier series coefficient ak is __________ .
purely imaginary and even
purely real and even
purely imaginary and odd
purely real and odd
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Sai said:   4 months ago
For a real and odd signal, the Fourier series coefficient a_k is zero for all values of k.

This means the signal's Fourier series representation will only contain sine terms (and the DC term if present), with no cosine terms.

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