Question: Fourier analysis of a particular periodic function includes the harmonic frequencies (889 mathrm{~Hz}, 1143 mathrm{~Hz}), and (1270 mathrm{~Hz}). What is the fundamental frequency (f_{1}), assuming

Fourier analysis of a particular periodic function includes the harmonic frequencies $889 \mathrm{~Hz}, 1143 \mathrm{~Hz}$, and $1270 \mathrm{~Hz}$. What is the fundamental frequency $f_{1}$, assuming that $f_{1}>100 \mathrm{~Hz}$ ?

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