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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 sine, cosine, tangent, and cotangent graphs, periodic functions, amplitude, phase shift, and real-world modeling.

Trigonometry Study Guide: Graphs, Periodic Functions & Models

Graphs of Sine, Cosine, Tangent, and Cotangent Functions: Periodic Behavior and Transformations

Graphs of the Sine and Cosine Functions

Phase Shifts

Graphs of Tangent and Cotangent Functions

Graphs of Secant and Cosecant Functions

Graphs of Sine, Cosine, Tangent, and Cotangent Functions: Periodic Behavior and Transformations

Study Guide - Learn with Videos

Graphs of the Sine and Cosine Functions

Phase Shifts

Graphs of Tangent and Cotangent Functions

Graphs of Secant and Cosecant Functions