If x(t) is a real periodic function, choose the correct option about exponential fourier series of x(t).
1
Magnitude spectrum is symmetrical about the vertical axis through origin and phase spectrum is antisymmetrical about vertical axis through origin.
2
Magnitude spectrum is antisymmetrical phase spectrum is symmetrical about vertical axis through origin
3
Magnitude is symmetrical & phase spectrum is also symmetrical about vertical axis through origin
4
Both magnitude and phase are antisymmetrical about vertical axis through origin