engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Fourier Series Forms of Fourier Series
The magnitude and phase spectra corresponding to a signal x(t) is shown. If the fundamental frequency ω0 = π then the signal x(t) is.
1
\(4\cos \left( \frac{\pi }{6} \right)+2\cos \left( \frac{\pi }{3} \right)\)
2
\(4\cos \left( 2\pi t+\frac{\pi }{6} \right)+2\cos \left( \pi t-\frac{\pi }{3} \right)\)
3
\(4\cos \left( 2\pi t+\frac{\pi }{6} \right)+4\cos \left( \pi t-\frac{\pi }{3} \right)\)
4
\(2\cos \left( 2\pi t+\frac{\pi }{3} \right)+4\cos \left( \pi t+\frac{\pi }{6} \right)\)