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fredag den 7. juni 2013

Expansion formula for cos⁡nθ - deriving a formula for cos⁡(nθ) in terms of cos⁡θ



Expansion formula for cos⁡nθ 

Deriving a formula for cos⁡nθ  expressed  in terms of cos⁡θ




Expansion formula for cos⁡nθ Deriving a formula for cos⁡nθ expressed in terms of cos⁡θ




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