Express $\sin 4x + \sin 6x$ as a product of trigonometric functions.
Question:
Express $\sin 4x + \sin 6x$ as a product of trigonometric functions.
Answer:
Let's think step by step.

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2 \sin 5x \cos x
Express $\sin 4x + \sin 6x$ as a product of trigonometric functions.
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