Question: 1.7-1. A periodic triangular waveform v(r) is defined by 21 (1) = 7 (1 7) = 0(1) and and has the Fourier expansion D(t)

1.7-1. A periodic triangular waveform v(r) is defined by 21 (1) =

1.7-1. A periodic triangular waveform v(r) is defined by 21 (1) = 7 (1 7) = 0(1) and and has the Fourier expansion D(t) = for (-1* T sin 2an Calculate the fraction of the normalized power of this waveform which is contained in its first thre harmonic

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