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

Application of the Law of Cosines

The Law of Cosines

Oblique Word Problems

Law of Cosines, Example 5

Using Law of Cosines

Law of Cosines, Example 6

Find the Bearing and Distance - Law of Cosines word problem

Law of Cosines, Example 2

Heron's Formula - Example

Heron's formula - Perimeter, area, and volume

Law of Cosines, Example 3

The Cosine Rule (2 of 3: Basic Example of Finding Sides)

Heron's Formula 2

Law of Cosines Word Problem

Law of cosines - Trig identities and examples

Heron's Formula

Law of Cosines, Example 1

Heron's Formula to Find Height of a Triangle

Heron's Formula, Example 1

Using the law of cosines for a triangle with SAS

Law of Cosines, Example 4

How to use heron's formula to find the area of a triangle with SSS

Using the Law of Cosines (SSS) to find an angle

Heron's Formula, Example 3

Heron's Formula: Area of a Triangle

Use the Law of Cosines to Solve Oblique Triangles

Law of Cosines

How to Find the Area of a Triangle with Trigonometry

Law of Cosines, Word Problem #1

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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Don't Memorise

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Brian McLogan

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Professor Dave Explains

Khan Academy

Mr. S Math

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Plot Complex Numbers in the Complex Plane

Find the Absolute Value of a Complex Number

Write Complex Numbers in Polar Form

Convert a Complex Number from Polar to Rectangular Form

Find Products of Complex Numbers in Polar Form

Find Quotients of Complex Numbers in Polar Form

Find Powers of Complex Numbers in Polar Form

Find Roots of Complex Numbers in Polar Form

Complex Numbers in Polar Form, DeMoivre's Theorem

Use Magnitude and Direction to Show Vectors Are Equal

Visualize Scalar Multiplication, Vector Addition, and Vector Subtraction as Geometric Vectors

Represent Vectors in the Rectangular Coordinate System

Perform Operations with Vectors in Terms of i and j

Find the Unit Vector in the Direction of v

Write a Vector in Terms of Its Magnitude and Direction

Solve Applied Problems Involving Vectors

Vectors

Use Point Plotting to Graph Polar Equations

Use Symmetry to Graph Polar Equations

Graphs of Polar Equations

Solve Applied Problems Using the Law of Cosines

Use Heron's Formula to Find the Area of a Triangle

Use the Law of Sines to Solve Oblique Triangles

Use the Law of Sines to Solve, if Possible, the Triangle or Triangles in the Ambiguous Case

Find the Area of an Oblique Triangle Using the Sine Function

Solve Applied Problems Using the Law of Sines

The Law of Sines

Plot Points in the Polar Coordinate System

Find Multiple Sets of Polar Coordinates for a Given Point

Convert a Point from Polar to Rectangular Coordinates

Convert a Point from Rectangular to Polar Coordinates

Convert an Equation from Rectangular to Polar Coordinates

Convert an Equation from Polar to Rectangular Coordinates

Polar Coordinates

Find the Dot Product of Two Vectors

Find the Angle Between Two Vectors

Use the Dot Product to Determine if Two Vectors Are Orthogonal

Find the Projection of a Vector onto Another Vector

Express a Vector as the Sum of Two Orthogonal Vectors

Compute Work

The Dot Product

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

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Enhancing Your Critical Thinking Skills

Jason Richardson, PsyD

Habits To Win Every Day

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Having Powerful Advanced Conversations

Don Gilman, EdD

How To Influence & Persuade

Amy Matthews

Leadership Skills For Rising Stars

Listening To Lead

Michael Shermer, PhD

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