Trigonometry: Math Videos

This series introduces trigonometry, the math of triangles and angles. You will learn SOH CAH TOA, how to switch between degrees and radians, and how the unit circle defines sine and cosine. You will also graph trig functions and use a few key identities. Trigonometry is used in construction, navigation, and many technical trades. It will be easiest if you are comfortable with basic geometry and algebra.

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