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

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

Level 1

The topics in this unit focus on mastering the basic trigonometric identities. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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

Is this sum to product identity correct?

\text{sin}{(\beta)}-\text{sin}{(\gamma)} = -2 \text{sin}{( \frac{2}{(\beta )})} \text{cos}{( \frac{(\beta - \gamma)}{2})}

Earned ?