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OpenStudy (g33k):
PLEASE HELP A sound wave is modeled with the equation y = 1/4 cos 2pi/3⊖. Find the period, explain your method. Find the amplitude, explain your method.
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OpenStudy (peachpi):
y = A cos BΘ Amplitude = |A| Period = (2π)/B
OpenStudy (peachpi):
pick out A and B from your equation
OpenStudy (shadowlegendx):
^
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