1. Fundamental Concepts of Algebra

2. Functions and Graphs

3. Polynomial and Rational Functions

4. Exponential and Logarithmic Functions

5. Trigonometric Functions

6. Analytic Trigonometry

7. Additional Topics in Trigonometry

8. Systems of Equations and Inequalities

9. Matrices and Determinants

10. Conic Sections and Analytic Geometry

11. Sequences, Induction, and Probability

12. Introduction to Calculus

Introduction to Trigonometric Functions Using Triangles

The Trigonometric Functions: The Basics!

Special triangles

Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 3

30-60-90 Triangles - Special Right Triangle Trigonometry

Finding an Angle Given the Value of a Trigonometric Function - Example 2

All the Trigonometric Values Given a Right Triangle

Cool Pattern for Trig Special Angles

Using your trig and co function identities to evaluate

Trigonometric Functions for Special Angles (30, 45, and 60 Degrees)

Right Triangles and Trigonometric Functions

Cofunction Identities, Example 3

Trigonometric Functions To Find Unknown Sides of Right Triangles

Cofunction Identities Examples & Practice Problems

Basic Trigonometry Word Problem Using Right Triangle

Cofunction Identities

Cofunction Identities, Example 2

Basic Trigonometry Word Problem

45-45-90 Triangles, Special Right Triangle Trigonometry

Solving Right Triangles

Angles of Elevation and Depression

What is Soh-Cah-Toa?

Finding Trigonometric Function Values Given One Trig Value in a Right Triangle

Finding the Height of an Object Using Trigonometry

Applications of Right Triangles

Evaluating Trigonometric Functions at Important Angles, Ex 2

Evaluating Trigonometric Functions at Important Angles, Ex 1

Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent

Trigonometry: Solving Right Triangles... How?

Sine and Cosine Functions

Law of Sines - Application/Word Problem, Ex 3

Trigonometry Word Problem, Example 2

Finding the six trigonometric functions from a triangle

Right-Angled Triangle Trigonometry: Reviewing the ratios

Cofunction Identities (Trigonometry) - Understanding Them

Use Right Triangle Trigonometry to Solve Applied Problems

Right Triangle Trigonometry

Trigonometry Word Problem, Determining the Speed of a Boat, Example 3

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors 

Precalculus

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Carole Del Vecchio

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Solve a Right Triangle

Solve Problems Involving Bearings

Model Simple Harmonic Motion

Inverse cotangent, cosecant, and secant functions

Applications of Trigonometric Functions

Use the Definitions of Trigonometric Functions of Any Angle

Use the Signs of the Trigonometric Functions

Find Reference Angles

Use Reference Angles to Evaluate Trigonometric Functions

Trigonometric Functions of Any Angle

Recognize and Use the Vocabulary of Angles

Use Degree Measure

Use Radian Measure

Convert Between Degrees and Radians

Draw Angles in Standard Position

Find Coterminal Angles

Find the Length of a Circular Arc

Use Linear and Angular Speed to Describe Motion on a Circular Path

Angles and Radian Measure

Understand and Use the Inverse Sine Function

Understand and Use the Inverse Cosine Function

Understand and Use the Inverse Tangent Function

Use a Calculator to Evaluate Inverse Trigonometric Functions

Find Exact Values of Composite Functions with Inverse Trigonometric Functions

Inverse Trigonometric Functions

Use a Unit Circle to Define Trigonometric Functions of Real Numbers

Recognize the Domain and Range of Sine and Cosine Functions

Find the Exact Values of the Trigonometric Functions at &pi; / 4

Use Even and Odd Trigonometric Functions

Recognize and Use Fundamental Identities

Use Periodic Properties

Evaluate Trigonometric Functions With a Calculator

Trigonometric Functions: The Unit Circle

Use Right Triangles to Evaluate Trigonometric Functions

Find Function Values for 30&deg;(&pi; / 6), 45&deg;(&pi; / 4), and 60&deg;(&pi; / 3)

Use Equal Cofunctions of Complements

Understand the Graph of y = tan x

Graph Variations of y = tan x

Understand the Graph of y = cot x

Graph Variations of y = cot x

Understand the Graphs of y = csc x and y = sec x

Graph Variations of y = csc x and y = sec x

Graphs of Other Trigonometric Functions

Understand the Graph of y = sin x

Graph Variations of y = sin x

Understand the Graph of y = cos x

Graph Variations of y = cos x

Use Vertical Shifts of Sine and Cosine Curves

Model Periodic Behavior

Graphs of Sine and Cosine Functions

General Chemistry

Jules

Classification of Matter (1)

Classification of Matter (2)

Classification of Matter - Example

Study the key concepts of Physics with descriptive videos, questions, and more

Physics

Patrick

Introduction to Units & the SI System

Metric Prefixes

Scientific Notation

General Biology

Jason

Introduction to Biology

Unicellular vs. Multicellular

Characteristics of Life

Financial Accounting

Brian

Dive deep into Psychology with videos, practice problems, and more.

Psychology

Microeconomics

The first in a two-course sequence introduces the basic structure and functions of the human body

Anatomy & Physiology

Bruce

College Algebra covers algebraic topics and skills necessary to succeed in college-level math

College Algebra

Organic Chemistry

Johnny

Genetics

Kylia

GOB Chemistry

Dive deep into General, Organic, and Biological Chemistry with videos, practice problems, and more.

Intro to Chemistry

Microbiology

Cell Biology

Analytical Chemistry

Study topics incliding trogonometric functions, identities and equations, solutions of triangles, complex numbers, and other topics as time permits

Trigonometry

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors

Biochemistry

Macroeconomics

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Building Great Presentations

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Critical Thinking And Problem Solving

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Embracing Times Of Uncertainty

Nicole Tetreault, PhD

Emotional Intelligence Basics

Eugene Choi, PharmD

Enhancing Your Critical Thinking Skills

Jason Richardson, PsyD

Habits To Win Every Day

Alyssa Lowery, PhD

Having Powerful Advanced Conversations

Don Gilman, EdD

How To Influence & Persuade

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Leadership Skills For Rising Stars

Listening To Lead

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Making Decisions Under Uncertainty

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Mistakes To Avoid When Resolving Conflict

Michael Veltri

Overcoming Decision Making Traps

Mike Vardy

Prioritizing Effectively

Secrets Of Effective Prioritization

Strategies To Build Up Your Creativity

Tools For Decision Making

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Unleash And Advance Your Creativity

Winning Collaboration: How To Work More Effectively With Different Personalities