Aparticular periodic waveform with a period of 10 ms has the following Fourier coefficients a0 4;

Aparticular periodic waveform with a period of 10 ms has the following Fourier coefficients a0 ¼ 4; an ¼ 8 np sin np 2

cos np 4

; bn ¼

8 np sin np 2

sin np 4

(a) Write an expression for the terms in the Fourier series a0 and n ¼ 1 through 8.

(b) Convert your expression to amplitude and phase form and plot its spectrum.