Is this power reducing identity correct? $$\text{sin}^2{(\gamma)} = \frac{2}{1+\text{cos}(\gamma)}$$

Trigonometry Identities - Power Reducing 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 - Power Reducing Identity True/False (Greek Letter)

Is this power reducing identity correct?

\text{cos}^2{(\beta)} = \frac{2}{1+\text{cos}(\beta)}

Earned ?