fourier series of pure sine wave

[engr.waqas]

I want to ask that if any periodic wave is composed of many sine and cosine ways then is this true for pure sine wave?
I mean is pure sine wave too composed of many fundamental components???

 

[zorro]

A pure sine wave has only one Fourier component that is the sine signal itself!
Regards

Z

 

[engr.waqas]

Thanks to all of u for clarification