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SOLVED: Develop a formula for cos(3 θ) as a third-degree polynomial in
calculus - Prove this formula $1+\cos\theta+\cos2\theta+...+\cos n
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calculus - Prove this formula $1+\cos\theta+\cos2\theta+...+\cos n
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SOLVED:Solve the given equation. cosθ(2 sinθ+1)=0