Is this sum to product identity correct? $$\text{sin}{(\alpha)}+\text{sin}{(\beta)} = 2 \text{cos}{( \frac{(\alpha - \beta)}{2})} - \text{sin}{( \frac{(\alpha + \beta)}{2})} $$

Practice: Trigonometry Identities - Sum to Product Identity True/False (Greek Letter)

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Trigonometry Identities - Sum to Product Identity True/False (Greek Letter)

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Practice: Trigonometry Identities - Sum to Product Identity True/False (Greek Letter)

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Trigonometry Identities - Sum to Product Identity True/False (Greek Letter)

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