Triangle Basics
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Degrees, RaDians, and DMS Conversions
- Converting between Degree and Radians - Example and Practice Problems
- Converting between Degrees, Radians, and Degree/Minute/Second Form
- Khan Academy - Video Tutorial, Examples, and Practice Quiz
- Degree/Minute/Second Form Explanation and Example Problems
- Degree/Minute/Second Form Explained
- Putting DMS form in Your Calculator
trigonometry
- Khan Academy - Right Triangle Trig Video Tutorials and Practice Quiz
- Visual Explanation of Sine, Cosine and Tangent
- Using Trig to Find a Missing Side of a Right Triangle - Explanation and Example Problems
- Using Trig to Find a Missing Angle of a Right Triangle - Explanation, Examples, and Practice Problems
- Explanation of Trig Functions with Interactive Visual Guide
- Trigonometry Explained by the Unit Circle Quadrants
Vectors and Forces
law of Sines and Law of Cosines
Trigonometric Identities
- Pythagorean Identities - Khan Academy - Video Tutorials and Practice Quiz
- Pythagorean Identities - Explanation and Example Problems
- List of Trigonometric Identities
- Explanation of where Pythagorean Identities come from
- Pythagorean Identities - Explanation, Example Problems, Practice Quiz
- Simplifying Expressions Using Trig Identities - Khan Academy - Video Tutorial and Practice Quiz
- Strategies and Examples for Simplifying Expressions with Trig Identities
- Simplifying Trig Expressions - Video Tutorials
- Simplifying Trig Expressions - Step-by-Step Example Problems
- Trig Rations and Identities Notes Sheet