The equation for a periodic waveform is

\[
v(t)=V_{\mathrm{A}}\left[\sin \left(4 \pi t / T_{0}ight)+\left|\sin \left(4 \pi t / T_{0}ight)ight|ight]
\]

(a) Sketch the first two cycles of the waveform and identify a related signal in Figure 13-4 in the text.

(b) Use the Fourier series of the related signal to find the Fourier coefficients of \(v(t)\).

(c) Use MATLAB to sketch an estimate for the signal using the Fourier coefficients for \(n \leq 6\).