In the periodic function of Fig. 17.62,
(a) Find the trigonometric Fourier series coefficients a2 and b2,
(b) Calculate the magnitude and phase of the component of f(t) that has ωn = 10 rad/s,
(c) Use the first four nonzero terms to estimate f (Ï€ / 2).
(d) Show that

Transcribed Image Text:

4 1 3 5 7 9 11 f(t) 1 -2π -π -l