Beat frequency

tomcs

1. The problem statement, all variables and given/known data
If there are three frequencies: 200hz, 206hz and 209hz, how do you calculate the beat frequency of three frequencies?


2. Relevant equations
Fb=abs(F1-F2)



3. The attempt at a solution
1. The problem statement, all variables and given/known data



2. Relevant equations



3. The attempt at a solution

Astronuc

See if this helps - http://hyperphysics.phy-astr.gsu.edu...ound/beat.html

http://hyperphysics.phy-astr.gsu.edu...sumdif.html#c1

What are the possible combinations?

tomcs

thanx for the links but still not sure how to solve it...
Can you clarify what you meant by 'possible combination?'

thanx alot