Asked by stan loona
A sound wave is modeled with the equation y= 1/4 cos2pi/3 theta.
a. Find the period. Explain your method.
b. Find the amplitude. Explain your method.
i think the period is 2pi/3 but i feel like im wrong so could someone solve this and explain it for me? tysm.
a. Find the period. Explain your method.
b. Find the amplitude. Explain your method.
i think the period is 2pi/3 but i feel like im wrong so could someone solve this and explain it for me? tysm.
Answers
Answered by
oobleck
wrong on the period
Recall that the period of cos(kθ) is 2π/k
The amplitude of cosθ is 1
So, the amplitude of A*cosθ is A*1 = A
I'm sure your book explained this as well ...
Recall that the period of cos(kθ) is 2π/k
The amplitude of cosθ is 1
So, the amplitude of A*cosθ is A*1 = A
I'm sure your book explained this as well ...
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