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Trigonometry, Negative Angles Identity (Equations) - Cos/Sin/Tan to Identity (Greek Letter)

Level 1

The topics in this unit focus on understanding the basics of trigonometry identities. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Trigonometry, Negative Angles Identity (Equations) - Cos/Sin/Tan to Identity (Greek Letter)

What is true about the sine of this negative angle?

sin(−γ)\text{sin}(-\gamma)

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