Hello, I am having difficulty with this Fourier Series:

6218_123.bmp

The 1st problem is stated as such; What is the amplitude of the second harmonic of V (Voltage).

The 2^{nd}problem is stated as such; What is the DC component of V (Voltage).

The 3^{rd}problem is stated as such; What is the Fundamental frequency of (Voltage).

It would be great if someone out there could help with all of part of this...

Best Regards

Ward (Clawman)