Prove the identity. sin(3x) + sin(4y) = tan (3x + 4y) cos(3x) + cos(4y) 2 Use the Sum-to-Product Formulas and then simplify. sin(3x) + sin(4y) cos(3x) + cos(4y) || = 2( sin COS X × ) X

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A: The objective of the question is to simplify the given trigonometric expressions using trigonometric…

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A: According to the problem, we have

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Q: sin 5x - sin 4x simplify. tan = + sin x cos 5x cos 4x

A: final answeri have proof the RHS = LSH followingi have attached the image of step by step…

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A: We have to write this expression in terms of cos x.

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