Is this double-angle identity correct? $$\text{tan}{(2\cdot\frac{2\pi}{3})} = 2\text{tan}(\frac{2\pi}{3})\text{cot}(\frac{2\pi}{3})$$

Trigonometry Identities - Double 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.

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

Is this double-angle identity correct?

\text{tan}{(2\cdot\frac{\pi}{6})} = \frac{2\text{tan}(\frac{\pi}{6})}{1-\text{tan}^2(\frac{\pi}{6})}

Earned ?