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Prove that cos(π + θ)cos(-θ)/cos(π - θ)cos(π/2 + θ) = -cotθ

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Prove that

cos(π + θ)cos(-θ)/cos(π - θ)cos(π/2 + θ) = -cotθ

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\(\Rightarrow\) \(\frac{cos\theta}{-sin\theta}=-cot\theta\)

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