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How do we represent a pairing of a periodic signal with its fourier series coefficients in case of continuous time fourier series?

How do we represent a pairing of a periodic signal with its fourier series coefficients in case of continuous time fourier series? Correct Answer x(t) ↔ Xn

In case of continuous time fourier series, for simplicity, we represent a pairing of a periodic signal with its fourier series coefficients as, x(t) ↔ Xn here, x(t) is the signal and Xn is the fourier series coefficient.

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