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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

Callie Rethman

Nick Kaneko

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

Default TOC

This trigonometry study guide covers evaluating six circular function values using the unit circle, with step-by-step homework examples and solutions.

Evaluating Circular Function Values Using the Unit Circle

Study Guide - Learn with Videos

Angles in Standard Position

Trigonometric Functions on the Unit Circle

Reciprocal Trigonometric Functions on the Unit Circle