Is this half-angle identity correct? $$\text{sin}{(\frac{\frac{7\pi}{6}}{2})} = \pm\sqrt{\frac{1+\text{cos}(\frac{7\pi}{6})}{2}}$$

Trigonometry Identities - Half Angle 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.

SpeedPlay Worksheet ViewUnit

Trigonometry Identities - Half Angle Identity True/False (Radians)

Is this half-angle identity correct?

\text{sin}{(\frac{\frac{5\pi}{3}}{2})} = \pm\sqrt{\frac{1+\text{cos}(\frac{5\pi}{3})}{2}}

Earned ?