Inthe periodic function of Fig. 17.62,(a) find the trigonometric Fourier series coefficien...

Inthe 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 ω n = 10 rad/s,

(c) use the first four nonzero terms to estimate f (π /2),

(d) show that