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Angles, identities, and trig functions giving you trouble? Trigonometry is explained step-by-step so solving problems feels more approachable.

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Patrick Ford

Nick Kaneko

Callie Rethman

0. Review of College Algebra

1. Measuring Angles

2. Trigonometric Functions on Right Triangles

3. Unit Circle

4. Graphing Trigonometric Functions

5. Inverse Trigonometric Functions and Basic Trigonometric Equations

6. Trigonometric Identities and More Equations

7. Non-Right Triangles

8. Vectors

9. Polar Equations

10. Parametric Equations

11. Graphing Complex Numbers

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This trigonometry study guide covers unit vectors, direction calculations, and practice problems to help you master vector concepts efficiently.

Unit Vectors and Directions in Trigonometry

Study Guide - Learn with Videos

Unit Vectors and i & j Notation

Direction of a Vector

Geometric Vectors