Question

What beat frequencies are possible with tuning forks of frequencies 258, 263, and 267 Hz?
f1 = 263 -258 = 5Hz
f2 = 267 - 258 = 11 hz,
f3 = 267-263 = 4 Hz
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What beat frequencies are possible with tuning forks of frequencies 258, 263, and 267 Hz ?
Enter your answers in ascending order separated by commas.
f1,f2,f3 = 4,5,9 Hz

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