- #1
TogoPogo
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Homework Statement
Hello, I am trying to simplify the inputted function here http://www.wolframalpha.com/input/?i=sqrt(2)+sqrt(1-cos((2pi(x-y))/n))
which is [itex]\sqrt{2}[/itex][itex]\sqrt{1-cos[2\pi(x-y)/n]}[/itex]
to the form of 2sin[(x-y)\pi/n]
Homework Equations
Not sure
The Attempt at a Solution
EDIT: nevermind, found the solution... Forgot about double angle formula lolThe part that confused me was how they managed to remove the "2" in the argument of the cosine function, as well as how they removed the square root
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