Equation of a Musical Note
View the Lesson | MATHguide homepage Updated June 22nd, 2023

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Problem: The note A5 has a wavelength of 40 cm. Calculate the period of this note and determine its equation as a sine function.

 
Period:
=2π        
1 b

 
b =2π

 
b=2π
  

 
b=π
  

 
Equation:
y   =   sin     πθ