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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 angles, coterminal angles, special right triangles, trig functions, radians, and the unit circle for exam prep.

Angles and the Trigonometric Functions: Comprehensive Study Notes

Study Guide - Learn with Videos

Angles in Standard Position

Coterminal Angles

Special Right Triangles

Solving Right Triangles

Complementary and Supplementary Angles

Radians

Cofunctions of Complementary Angles

Trigonometric Functions on Right Triangles

Common Values of Sine, Cosine, & Tangent

Reciprocal Trigonometric Functions on the Unit Circle

Defining the Unit Circle

Trigonometric Functions on the Unit Circle

Reference Angles