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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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

Introduction to Trigonometric Identities

Sum and Difference Identities

Double Angle Identities

Solving Trigonometric Equations Using Identities

0. Review of College Algebra - Part 1 of 2

0. Review of College Algebra - Part 2 of 2

Rationalizing Denominators

Pythagorean Theorem & Basics of Triangles

Basics of Graphing

Functions

Transformations

Solving Linear Equations

Solving Quadratic Equations

Complex Numbers

Angles in Standard Position

Coterminal Angles

Complementary and Supplementary Angles

Radians

Trigonometry Midterm - Part 1 of 2

Trigonometric Functions on Right Triangles

Special Right Triangles

Cofunctions of Complementary Angles

Solving Right Triangles

Defining the Unit Circle

Trigonometric Functions on the Unit Circle

Common Values of Sine, Cosine, & Tangent

Reference Angles

Reciprocal Trigonometric Functions on the Unit Circle

Graphs of the Sine and Cosine Functions

Phase Shifts

Graphs of Secant and Cosecant Functions

Graphs of Tangent and Cotangent Functions

Inverse Sine, Cosine, & Tangent

Evaluate Composite Trig Functions

Linear Trigonometric Equations

Trigonometry Midterm - Part 2 of 2

Law of Sines

Law of Cosines

Geometric Vectors

Direction of a Vector

Unit Vectors and i & j Notation

Dot Product

Polar Coordinate System

Trigonometry Final - Part 1 of 2

ErnestBlazevic

Convert Points Between Polar and Rectangular Coordinates

Convert Equations Between Polar and Rectangular Forms

Graphing Other Common Polar Equations

Graphing Parametric Equations

Eliminate the Parameter

Writing Parametric Equations

Graphing Complex Numbers

Polar Form of Complex Numbers

Products and Quotients of Complex Numbers

Powers of Complex Numbers (DeMoivre's Theorem)

Trigonometry Final - Part 2 of 2

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