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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.

PracticeWorksheetView

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

Is this sum to product identity correct?

sin(α)+sin(β)=2cos((α−β)2)−sin((α+β)2)\text{sin}{(\alpha)}+\text{sin}{(\beta)} = 2 \text{cos}{( \frac{(\alpha - \beta)}{2})} - \text{sin}{( \frac{(\alpha + \beta)}{2})}

?