For the following exercises, prove the identity. Two frequencies of sound are played on an instrument governed

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For the following exercises, prove the identity.

Two frequencies of sound are played on an instrument governed by the equation n(t) = 8 cos(20πt)cos(1,000πt). What are the period and frequency of the “fast” and “slow” oscillations? What is the amplitude?

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Precalculus

ISBN: 9781938168345

1st Edition

Authors: Jay Abramson

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