The Journal of the Indian Mathematical Society

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The Sine and Cosine Series.


     

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Euler arrived at the well known expansions- of the sine and cosine by the development of Demoivre's theorem

cos.nθ+ √-1 sin nθ = (cosθ+ √-1 sinθ)n
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  • The Sine and Cosine Series.

Abstract Views: 255  |  PDF Views: 0

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Abstract


Euler arrived at the well known expansions- of the sine and cosine by the development of Demoivre's theorem

cos.nθ+ √-1 sin nθ = (cosθ+ √-1 sinθ)n