Laws of Sines, Cosines and Vectors

Use the Law of Cosines to Solve Oblique Triangles

The Law of Cosines

Using the law of cosines for a triangle with SAS

Law of cosines - Trig identities and examples

Law of Cosines, Example 5

Oblique Word Problems

Application of the Law of Cosines

Law of Cosines Word Problem

Heron's Formula - Example

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

Heron's Formula to Find Height of a Triangle

Using Law of Cosines

Law of Cosines, Word Problem #1

How to Find the Area of a Triangle with Trigonometry

Law of Cosines, Example 1

Heron's formula - Perimeter, area, and volume

Heron's Formula, Example 3

Heron's Formula: Area of a Triangle

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

Heron's Formula, Example 1

Heron's Formula

Law of Cosines, Example 3

Law of Cosines

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

Find the Bearing and Distance - Law of Cosines word problem

Heron's Formula 2

Law of Cosines, Example 4

Law of Cosines, Example 2

Law of Cosines, Example 6

This course covers topics including trigonometric functions (with graphs and inverse functions), identities and equations, solutions of triangles, complex numbers and more.

College Trigonometry

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 jasonbaldus

Mathispower4u

Mario's Math Tutoring

 MaestasMath

Don't Memorise

 Professor Leonard

Eddie Woo

Brian McLogan

Carolee Pederson

Professor Dave Explains

Khan Academy

Mr. S Math

patrickJMT

Angles and the Trigonometric Functions

Trigonometric Functions graphs, Inverse Trigonometric Functions

Trigonometric Identities and Equations

Complex Numbers, Polar Coordinates and Parametric Equations

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

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

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

Solve Applied Problems Using the Law of Cosines

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

General Chemistry

Jules

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

Physics

Patrick

General Biology

Jason

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

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

College Algebra

Organic Chemistry

Johnny

Genetics

Kylia

GOB 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

Precalculus

Biochemistry

Macroeconomics

Chemistry

Biology

Math

Business

Social Sciences

Michelle Barry Franco

Building Great Presentations

Eric Zackrison, PhD

Critical Thinking And Problem Solving

Sam Bennett

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

Amy Matthews

Leadership Skills For Rising Stars

Listening To Lead

Michael Shermer, PhD

Making Decisions Under Uncertainty

Lynne Hurdle

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

Tutti Taygerly

Unleash And Advance Your Creativity

Winning Collaboration: How To Work More Effectively With Different Personalities

Writing Emails People Want To Read

Critical Thinking

Self Management

Digital Literacy

Collaboration

Communication

Analytical Thinking

Leadership

Flexibility/Adaptability

Innovation

Eric Zackrison

Nicole Tetreault

Dive deep into Python with videos and more.

Introduction to Python

Arianne Dee

Agile Project and Product Management

Agile & Product Management

Mariya Breyther 

Introduction to Microsoft Power BI

Microsoft Power BI

Chris Sorensen

Data Analysis Fundamentals with Excel

Data Analysis - Excel

Chris Sorensen & Ammul Shergill

Getting Started with  and Cryptocurrency

Introduction to Blockchain

George Levy

Learn Enough HTML, CSS and Layout to be Dangerous

HTML, CSS & Layout

Lee Donahoe & Michael Hartl

Learn Enough JavaScript to be Dangerous: A Tutorial Introduction to Programming with JavaScript