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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.

PracticeWorksheetView

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

Is this double-angle identity correct?

sin(2â‹…7Ï€6)=sin(7Ï€6)cos(7Ï€6)2\text{sin}{(2\cdot\frac{7\pi}{6})} = \frac{\text{sin}(\frac{7\pi}{6})\text{cos}(\frac{7\pi}{6})}{2}

?