Official PYQ · 2017Set 1 · Q8Continuous-time SignalsMCQ1 mark

GATE EC 2017 Set 1 Q8 — Continuous-time Signals

A periodic signal $x(t)$ has a trigonometric Fourier series expansion

$x( t )= a_{0}+\sum_{n=1}^{ \infty } ( a_{n} \cos n\omega _{0}t+b_{n}\sin n\omega _{0}t )$

If $x(t)= -x(-t)=-x(t-\frac{\pi }{\omega _{0}})$ , we can conclude that

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Published 10 Oct 2026

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