George's Math Aid

MAT 152 - Precalculus

Paul's Online Math Notes
- Algebra - Complete Notes
- Algebra/Trig Review
- Trig - Cheat Sheet
ClassZone - Middle/High School textbook resources
- Formulas
- Formulas and Properties
- Geometry Formulas
- Geometric Formulas
- Geometry Postulates and Theorems
Geometric Formulas by Austin Community College
Math Is Fun - Lessons
- Geometry
- Trigonometry
Graphs of Functions from A Graphical Approach to Algebra and Trigonometry
Common Trigonometric Angle Measurements by Germanna Community College
Unit Circle by Wikipedia
Unit Circle and Fill in The Unit Circle by EmbeddedMath
Interactive Mathematics
- Graphs of y = a sin x and y = a cos x
- Graphs of tan, cot, sec and csc
- Graphs of Inverse Trigonometric Functions
- Inverse Trigonometric Function Graph Animations
- Which is the correct graph of arccot x?
George Hartas
- Common Degrees to Radians
- Degrees to Radians
- Trigonometric Functions of Acute Angles
- Degree and Radian Measures of Common Angles
- sin, cos, tan Values for Common Angles
- csc, sec, cot Values for Common Angles
- Trig Function Reciprocal Values
- Unit Circle Trigonometric Values
- Trigonometric Properties & Theorems
- Trigonometric Properties & Theorems 4x6 Card
- Unit Circle Flash Cards
  - Spoke 1, Spoke 2, Spoke 3, Spoke 4, Spoke 5, Spoke 6, Spoke 7, Spoke 8, Spoke 9, Spoke 10, Spoke 11, Spoke 12, Spoke 13, Spoke 14, Spoke 15, Spoke 16
- Domain Issues of Inverse Composite Trig Functions
Mathispower4u - Videos synced to Algebra & Trigonometry, 10th Ed., Sullivan
- Geometry Video Library
- Trigonometry Video Library
- Chapter 7 Trigonometric Functions
- Chapter 8 Analytic Trigonometry
  - Section 8.1 The Inverse Sine, Cosine, and Tangent Functions
    - Introduction to Trigonometric Functions Using Angles
  - Section 8.2 The Inverse Trigonometric Functions (Continued)
  - Section 8.3 Trigonometric Equations
  - Section 8.4 Trigonometric Identities
  - Section 8.5 Sum and Difference Formulas
  - Section 8.6 Double-angle and Half-angle Formulas
  - Section 8.7 Product-to-Sum and Sum-to-Product Formulas
- Chapter 9 Applications of Trigonometric Functions
  - Section 9.1 Applications Involving Right Triangles
  - Section 9.2 The Law of Sines
  - Section 9.3 The Law of Cosines
  - Section 9.4 Area of a Triangle
  - Section 9.5 Simple Harmonic Motion; Damped Motion; Combining Waves
- Chapter 10 Polar Coordinates; Vectors
  - Section 10.1 Polar Coordinates
  - Section 10.2 Polar Equations and Graphs
  - Section 10.3 The Complex Plane; De Moivre’s Theorem
  - Section 10.4 Vectors
  - Section 10.5 The Dot Product
- Chapter 11 Analytic Geometry
  - Section 11.1 Conics
  - Section 11.2 The Parabola
  - Section 11.3 The Ellipse
  - Section 11.4 The Hyperbola
  - Section 11.5 Rotation of Axes; General Form of a Conic
  - Section 11.6 Polar Equations of Conics
  - Section 11.7 Plane Curves and Parametric Equations
- Chapter 12 Systems of Equations and Inequalities
  - Section 12.1 Systems of Linear Equations: Substitution and Elimination
  - Section 12.2 Systems of Linear Equations: Matrices
  - Section 12.3 Systems of Linear Equations: Determinants
  - Section 12.4 Matrix Algebra
  - Section 12.5 Partial Fraction Decomposition
  - Section 12.6 Systems of Nonlinear Equations
  - Section 12.7 Systems of Inequalities
  - Section 12.8 Linear Programming
- Chapter 13 Sequences; Induction; the Binomial Theorem
  - Section 13.1 Sequences
  - Section 13.2 Arithmetic Sequences
  - Section 13.3 Geometric Sequences; Geometric Series
  - Section 13.4 Mathematical Induction
  - Section 13.5 The Binomial Theorem
Dennis Davis - YouTube
- Trigonometry Concepts - Don't Memorize! Visualize!
- Trigonometry Series
Cole's World of Mathematics - YouTube
- Trigonometry
ProfRobBob - YouTube
- Geometry
- Analytical Geometry
- Algebra II
- Precalculus
- Trigonometry
mathematicsonline - YouTube
- Equation of an Ellipse, Deriving the Formula
MySecretMathTutor - YouTube
- Trigonometry
Krista King - YouTube
- Geometry
- Trigonometry
iLectureOnline - Videos
- Geometry
- Precalculus
- Trigonometry
Virtual Nerd - Videos
- Geometry
- Trigonometric Functions
- Trigonometric Identities and Equations
Khan Academy - Videos
- Geometry (All Content)
  - Basic Geometry
  - High School Geometry
- Precalculus
- Basic Trigonometry
- Unit Circle Definition of Trig Functions
- Graphs of Trig Functions
- Trig Identities
patrickJMT - YouTube
- Trigonometry
- Conic Sections
- Partial Fraction Decomposition
- Determining Coefficients for Partial Fractions
Brian McLogan - YouTube
- Geometry
- Trigonometry
  - Special Right Triangles
  - Similar Triangles
  - Triangle Relationships
  - Triangle Measures
  - Applying the Pythagorean Theorem
  - Solving a Trigonometric Equation
  - Graphs of Sine and Cosine
  - Determine the Six Trig Functions Given One Trig Value
  - Given a Point Find the Six Trigonometric Functions
  - Evaluate the Six Trigonometric Functions for the Real Number
  - Basics of the Unit Circle
  - Find the Coordinate Point on the Unit Circle
  - Essential definitions for Trigonometry
  - Determine the Complement and Supplement of an Angle
  - Determine Two Coterminal Angles Positive and Negative
  - Sketch the Angle in Standard Position
  - Determine the Quadrant in which the Angle Lies
  - Find the Value of Theta in the First Quadrant
Krista Hands - YouTube
- Angles and Their Measure (Part 1)
- Angles and Their Measure (Part 2)
- Angles and Their Measure (Part 3)
- Right Triangle Trigonometry (Part 1)
- Right Triangle Trigonometry (Part 2)
- Trig Functions of General Angles (Part 1)
- Trig Functions of General Angles (Part 2)
- Unit Circle Approach (Part 1)
- Unit Circle Approach (Part 2)
- Computing Trig Values (Part 1)
- Computing Trig Values (Part 2)
- Graphs of Sine & Cosine
- Graphs of Tan, Cot, Csc & Sec
- Phase Shift
- Trigonometric Equations I (Part 1)
- Trigonometric Equations I (Part 2)
- Trigonometric Equations II (Part 1)
- Trigonometric Equations II (Part 2)
- Applications Involving Right Triangles (Part 1)
- Applications Involving Right Triangles (Part 2)
- Trigonometric Identities (Part 1)
- Trigonometric Identities (Part 2)
- Trigonometric Identities (Part 2 Cont.)
- Product & Sum/Difference Formulas
- Double and Half Angle Identities (Part 1)
- Double and Half Angle Identities (Part 2)
- Sum and Difference Formulas (Part 1)
- Sum and Difference Formulas (Part 2)
- Inverse Trig Functions (Part 1)
- Inverse Trig Functions (Part 1 Cont.)
- Inverse Trig Functions (Part 2)
Geometry, Precalculus, Trigonometry - Videos by Brightstorm
Precalculus with Limits: A Graphing Approach - Video tutorials by Cengage Learning
Partial-Fraction Decomposition - by Purplemath
MyLabsPlus, Algebra and Trigonometry, 11th Ed., Sullivan, by Pearson Education
- Section Video Lectures
  - Chapter 7 Trigonometric Functions
  - Chapter 8 Analytic Trigonometry
  - Chapter 9 Applications of Trigonometric Functions
  - Chapter 10 Polar Coordinates; Vectors
  - Chapter 11 Analytic Geometry
  - Chapter 12 Systems of Equations and Inequalities
  - Chapter 13 Sequences; Induction; the Binomial Theorem
  - Chapter 14 Counting and Probability
- Author in Action Videos
- Chapter Test Prep Videos
- Guided Visualizations
  - Chapter 7 Trigonometric Functions
  - Chapter 8 Analytic Trigonometry
    - Graphs of Inverse Trig Functions: Sine, Cosine, and Tangent
    - Graphs of Inverse Trig Functions: Cosecant, Secant, and Cotangent
  - Chapter 9 Applications of Trigonometric Functions
    - Solving Oblique Triangles
    - Solving Oblique Triangles: Side-Side-Angle (SSA)
  - Chapter 10 Polar Coordinates; Vectors
  - Chapter 11 Analytic Geometry
    - Conic Sections: Rectangular Form
    - Conic Sections: Polar Form
    - Graphs of Parametric Equations
    - Sullivan Guided Visualizations
- Animation
  - Chapter 7 Trigonometric Functions
  - Chapter 8 Analytic Trigonometry
    - Sum and Difference Formulas
  - Chapter 9 Applications of Trigonometric Functions
    - The Law of Sines
  - Chapter 10 Polar Coordinates; Vectors
    - Polar Coordinates
    - Graphs of Polar Equations
  - Chapter 11 Analytic Geometry
  - Chapter 12 Systems of Equations and Inequalities
  - Chapter 13 Sequences; Induction; the Binomial Theorem
  - Chapter 14 Counting and Probability

Algebra & Trigonometry Enhanced with Graphing Utilities, 6th Ed., Sullivan

NOTE: This book is NOT used at DCCC. The book Algebra and Trigonometry, 9th Ed. is used but no videos exist for this text, yet. However, the chapters are similar.
» Videos by Sullivan's Algebra and Trigonometry EGU 6e

Also see Precalculus, 9th Ed., Sullivan for more videos

George Hartas, MS
Educational Assistant for Mathematics Remediation
Delaware County Community College
- Spring 2024

Instructor, MAT 025
Marple M, 6:00pm-9:00pm
Upper Darby TR, 9:35am-11:00am
Online W, 6:00pm-9:00pm

Educational Assistant, MAT 050
Marple MWF, 10:10am-11:05am
Marple MWF, 11:15am-12:10pm
Marple TR, 12:10pm-1:35pm
Marple TR, 1:45pm-4:45pm
Marple T, 6:00pm-9:00pm
Marple R, 6:00pm-9:00pm