Starting from (3.37), derive the formula (3.39) for the Fourier series coefficients of the...

Starting from (3.37), derive the formula (3.39) for the Fourier series coefficients of the triangle wave. Use integration by parts to manipulate the integrands which contain terms of the form te–j(2π/T0)kt.

Fig. 4: Summing harmonic components for the triangle wave via (3.30): first and third harmonics (top panel); up to and including the eleventh harmonic (bottom).