sin(4x)=8 sin(x)cos^3(x)-4 sin(x)cos(x)
Proofs are beyond confusing...

sin(4x)=8 sin(x)cos^3(x)-4 sin(x)cos(x)
Proofs are beyond confusing...

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sounds like you are trying to show this is an identity

Which I am trying to figure out now lol

it looks like i should be using 2 sin theta and cos theta

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