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Trigonometry Identities - Sum/Difference Identity True/False (Degrees)

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 - Sum/Difference Identity True/False (Degrees)

Is this sum/difference identity correct?

sin(210∘+60∘)=sin2(210∘)−cos(210∘)sin(60∘)\text{sin}{(210^{\circ} + 60^{\circ})} = \text{sin}^2{(210^{\circ})} - \text{cos}{(210^{\circ})}\text{sin}{(60^{\circ})}

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