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Expansion of cos power n theta and sin power n theta in terms of multiples of sines/cosines

State and prove *De moivre's theorem* #engineeringmathematics #applied_maths #complexnumbers

Helium-Neon laser #appliedphysics1 #engineering

Ruby laser #appliedphysics1 #engineering

Michelson Interferometer #appliedphysics1 #engineering #easytolearn

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