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prove that the expression cos^(θ)+cos^2(θ+α)-2 cos(α)cos(θ)cos(α+θ) is independent of θ

prove that the expression cos^(θ)+cos^2(θ+α)-2 cos(α)cos(θ)cos(α+θ) is independent of θ
 

Grade:11

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
6 years ago
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