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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The frequencies of the two oscillations are given by f 1 2 sqrt frac 800 pi and ...View the full answer
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