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

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.

Practice Worksheet ViewUnit

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

Is this sum to product identity correct?

\text{sin}{(\frac{2\pi}{3})}+\text{sin}{(\frac{4\pi}{3})} = 2 \text{sin}{( \frac{(\frac{2\pi}{3} + \frac{4\pi}{3})}{2})} \text{cos}{( \frac{(\frac{2\pi}{3} - \frac{4\pi}{3})}{2})}

Earned ?