Prove that:cot 4x (sin 5x + sin 3x) = co...

Prove that:`cot 4x (sin 5x + sin 3x) = cot x (sin 5x sin 3x)`

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To prove the equation \( \cot 4x (\sin 5x + \sin 3x) = \cot x (\sin 5x - \sin 3x) \), we will simplify both sides step by step. ### Step 1: Simplifying the Left-Hand Side (LHS) The left-hand side is: \[ \text{LHS} = \cot 4x (\sin 5x + \sin 3x) \] ...

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prove that cot4x(sin5x+sin3x)=cot x(sin5x-sin3x)

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