13–19 The first four terms in the Fourier series of a periodic waveform are

(a) Find the period and fundamental frequency in rad/s and Hz. Identify the harmonics present in the first four terms.

(b) Identify the symmetry features of the waveform.

(c) Write the first four terms in the Fourier series for the waveform vðt−T0=4Þ.

Transcribed Image Text:

1 v(t)=5 sin(15km)-sin(45k)+sin(75k) 1 sin (105k) V 49 sin (105kx)]