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Professor Dave Explains

 

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Trigonometry

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Classical Physics Practice Problems

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Search Professor Dave Explains

Calculus

28 Uploads

Professor Dave Explains

Geometry

15 Uploads

Professor Dave Explains

Trigonometry

11 Uploads

Professor Dave Explains

Algebra 1 & 2

48 Uploads

Professor Dave Explains

Biology

19 Uploads

Professor Dave Explains

Classical Physics Practice Problems

12 Uploads

Professor Dave Explains

American History

13 Uploads

Professor Dave Explains

Organic Chemistry Practice Problems

27 Uploads

Professor Dave Explains

Italian

50 Uploads

Professor Dave Explains

Introduction to Calculus: The Greeks, Newton, and Leibniz
Professor Dave Explains

Understanding Differentiation Part 1: The Slope of a Tangent Line
Professor Dave Explains

Understanding Differentiation Part 2: Rates of Change
Professor Dave Explains

Limits and Limit Laws in Calculus
Professor Dave Explains

What is a Derivative? Deriving the Power Rule
Professor Dave Explains

Derivatives of Polynomial Functions: Power Rule, Product Rule, and Quotient Rule
Professor Dave Explains

Derivatives of Trigonometric Functions
Professor Dave Explains

Derivatives of Composite Functions: The Chain Rule
Professor Dave Explains

Derivatives of Logarithmic and Exponential Functions
Professor Dave Explains

Implicit Differentiation
Professor Dave Explains

Higher Derivatives and Their Applications
Professor Dave Explains

Related Rates in Calculus
Professor Dave Explains

Finding Local Maxima and Minima by Differentiation
Professor Dave Explains

Graphing Functions and Their Derivatives
Professor Dave Explains

Optimization Problems in Calculus
Professor Dave Explains

Understanding Limits and L'Hospital's Rule
Professor Dave Explains

What is Integration? Finding the Area Under a Curve
Professor Dave Explains

The Fundamental Theorem of Calculus: Redefining Integration
Professor Dave Explains

Properties of Integrals and Evaluating Definite Integrals
Professor Dave Explains

Evaluating Indefinite Integrals
Professor Dave Explains

Evaluating Integrals With Trigonometric Functions
Professor Dave Explains

Integration Using The Substitution Rule
Professor Dave Explains

Integration By Parts
Professor Dave Explains

Integration by Trigonometric Substitution
Professor Dave Explains

Advanced Strategy for Integration in Calculus
Professor Dave Explains

Evaluating Improper Integrals
Professor Dave Explains

Finding the Area Between Two Curves by Integration
Professor Dave Explains

Calculating the Volume of a Solid of Revolution by Integration
Professor Dave Explains

Introduction to Geometry: Ancient Greece and the Pythagoreans
Professor Dave Explains

Basic Euclidian Geometry: Points, Lines, and Planes
Professor Dave Explains

Types of Angles and Angle Relationships
Professor Dave Explains

Types of Triangles in Euclidian Geometry
Professor Dave Explains

Proving Triangle Congruence and Similarity
Professor Dave Explains

Special Lines in Triangles: Bisectors, Medians, and Altitudes
Professor Dave Explains

The Triangle Midsegment Theorem
Professor Dave Explains

The Pythagorean Theorem
Professor Dave Explains

Types of Quadrilaterals and Other Polygons
Professor Dave Explains

Calculating the Perimeter of Polygons
Professor Dave Explains

Circles: Radius, Diameter, Chords, Circumference, and Sectors
Professor Dave Explains

Calculating the Area of Shapes
Professor Dave Explains

Proving the Pythagorean Theorem
Professor Dave Explains

Three-Dimensional Shapes Part 1: Types, Calculating Surface Area
Professor Dave Explains

Three-Dimensional Shapes Part 2: Calculating Volume
Professor Dave Explains

Introduction to Trigonometry: Angles and Radians
Professor Dave Explains

Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent
Professor Dave Explains

The Easiest Way to Memorize the Trigonometric Unit Circle
Professor Dave Explains

Basic Trigonometric Identities: Pythagorean Identities and Cofunction Identities
Professor Dave Explains

Graphing Trigonometric Functions
Professor Dave Explains

Inverse Trigonometric Functions
Professor Dave Explains

Verifying Trigonometric Identities
Professor Dave Explains

Formulas for Trigonometric Functions: Sum/Difference, Double/Half-Angle, Prod-to-Sum/Sum-to-Prod
Professor Dave Explains

Solving Trigonometric Equations
Professor Dave Explains

The Law of Sines
Professor Dave Explains

The Law of Cosines
Professor Dave Explains

Introduction to Algebra: Using Variables
Professor Dave Explains

Basic Number Properties for Algebra
Professor Dave Explains

Algebraic Equations and Their Solutions
Professor Dave Explains

Algebraic Equations With Variables on Both Sides
Professor Dave Explains

Algebraic Word Problems
Professor Dave Explains

Solving Algebraic Inequalities
Professor Dave Explains

Square Roots, Cube Roots, and Other Roots
Professor Dave Explains

Simplifying Expressions With Roots and Exponents
Professor Dave Explains

Solving Algebraic Equations With Roots and Exponents
Professor Dave Explains

Introduction to Polynomials
Professor Dave Explains

Adding and Subtracting Polynomials
Professor Dave Explains

Multiplying Binomials by the FOIL Method
Professor Dave Explains

Solving Quadratics by Factoring
Professor Dave Explains

Solving Quadratics by Completing the Square
Professor Dave Explains

Solving Quadratics by Using the Quadratic Formula
Professor Dave Explains

Solving Higher Degree Polynomials by Synthetic Division and the Rational Roots Test
Professor Dave Explains

Manipulating Rational Expressions: Simplification and Operations
Professor Dave Explains

Graphing in Algebra: Ordered Pairs and the Coordinate Plane
Professor Dave Explains

Graphing Lines in Algebra: Understanding Slopes and Y-Intercepts
Professor Dave Explains

Graphing Lines in Slope-Intercept Form (y = mx + b)
Professor Dave Explains

Graphing Lines in Standard Form (ax + by = c)
Professor Dave Explains

Graphing Parallel and Perpendicular Lines
Professor Dave Explains

Solving Systems of Two Equations and Two Unknowns: Graphing, Substitution, and Elimination
Professor Dave Explains

Absolute Values: Defining, Calculating, and Graphing
Professor Dave Explains

What are the Types of Numbers? Real vs. Imaginary, Rational vs. Irrational
Professor Dave Explains

Back to Algebra: What are Functions?
Professor Dave Explains

Manipulating Functions Algebraically and Evaluating Composite Functions
Professor Dave Explains

Graphing Algebraic Functions: Domain and Range, Maxima and Minima
Professor Dave Explains

Transforming Algebraic Functions: Shifting, Stretching, and Reflecting
Professor Dave Explains

Continuous, Discontinuous, and Piecewise Functions
Professor Dave Explains

Inverse Functions
Professor Dave Explains

The Distance Formula: Finding the Distance Between Two Points
Professor Dave Explains

Graphing Conic Sections Part 1: Circles
Professor Dave Explains

Graphing Conic Sections Part 2: Ellipses
Professor Dave Explains

Graphing Conic Sections Part 3: Parabolas in Standard Form
Professor Dave Explains

Graphing Conic Sections Part 4: Hyperbolas
Professor Dave Explains

Graphing Higher-Degree Polynomials: The Leading Coefficient Test and Finding Zeros
Professor Dave Explains

Graphing Rational Functions and Their Asymptotes
Professor Dave Explains

Solving and Graphing Polynomial and Rational Inequalities
Professor Dave Explains

Evaluating and Graphing Exponential Functions
Professor Dave Explains

Logarithms Part 1: Evaluation of Logs and Graphing Logarithmic Functions
Professor Dave Explains

Logarithms Part 2: Base Ten Logs, Natural Logs, and the Change-Of-Base Property
Professor Dave Explains

Logarithms Part 3: Properties of Logs, Expanding Logarithmic Expressions
Professor Dave Explains

Solving Exponential and Logarithmic Equations
Professor Dave Explains

Complex Numbers: Operations, Complex Conjugates, and the Linear Factorization Theorem
Professor Dave Explains

Set Theory: Types of Sets, Unions and Intersections
Professor Dave Explains

Sequences, Factorials, and Summation Notation
Professor Dave Explains

Theoretical Probability, Permutations and Combinations
Professor Dave Explains

Introduction to Biology: What is Life?
Professor Dave Explains

The Origin of Life on Earth
Professor Dave Explains

Prokaryotic Cells: The Simplest Kind of Life
Professor Dave Explains

Eukaryotic Cells Part 1: Animal Cells and Endosymbiotic Theory
Professor Dave Explains

Eukaryotic Cells Part 2: Plant Cells
Professor Dave Explains

The Cell Cycle and its Regulation
Professor Dave Explains

Mitosis: How One Cell Becomes Two
Professor Dave Explains

Meiosis, Gametes, and the Human Life Cycle
Professor Dave Explains

Mendelian Genetics and Punnett Squares
Professor Dave Explains

Chromosome Structure and Organization
Professor Dave Explains

Regulation of Gene Expression: Operons, Epigenetics, and Transcription Factors
Professor Dave Explains

Viruses: Molecular Hijackers
Professor Dave Explains

Unicellular Life Part 1: Bacteria
Professor Dave Explains

Unicellular Life Part 2: Archaea and Protists
Professor Dave Explains

The Origin of Multicellular Life: Cell Specialization and Animal Development
Professor Dave Explains

Charles Darwin's Idea: Descent With Modification
Professor Dave Explains

The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow
Professor Dave Explains

Phylogeny and the Tree of Life
Professor Dave Explains

Biotechnology: Genetic Modification, Cloning, Stem Cells, and Beyond
Professor Dave Explains

Practice Problem: The Motorcycle Daredevil
Professor Dave Explains

Practice Problem: Pushing Boxes
Professor Dave Explains

Practice Problem: One-Dimensional Two-Body Problem
Professor Dave Explains

Practice Problem: Box Sliding Down a Ramp
Professor Dave Explains

Practice Problem: Two-Dimensional Two-Body Problem
Professor Dave Explains

Practice Problem: Kinetic and Potential Energy of a Ball on a Ramp
Professor Dave Explains

Practice Problem: The Mini-Golf Windmill
Professor Dave Explains

Practice Problem: Launching Things With Springs
Professor Dave Explains

Practice Problem: Pendulum Velocity
Professor Dave Explains

Practice Problem: Inelastic Collisions at the Skating Rink
Professor Dave Explains

Practice Problem: Comparing Gravitational Forces
Professor Dave Explains

Practice Problem: Torque on a Mobile
Professor Dave Explains

George Washington: The Birth of a Nation (1789 - 1797)
Professor Dave Explains

John Adams: His Rotundity (1797 - 1801)
Professor Dave Explains

Thomas Jefferson: Author of the Declaration of Independence (1801-1809)
Professor Dave Explains

James Madison: Father of the Constitution (1809 - 1817)
Professor Dave Explains

James Monroe: Last Cocked Hat (1817 - 1825)
Professor Dave Explains

John Quincy Adams: Like Father, Like Son (1825 - 1829)
Professor Dave Explains

Andrew Jackson: Founder of the Democratic Party (1829 - 1837)
Professor Dave Explains

Martin Van Buren: Best Mutton Chops Ever (1837 - 1841)
Professor Dave Explains

William Henry Harrison: Hey, What Happened? (1841)
Professor Dave Explains

John Tyler: His Accidency (1841 - 1845)
Professor Dave Explains

James Polk: Best Mullet Ever (1845 - 1849)
Professor Dave Explains

Zachary Taylor: Old Rough and Ready (1849 - 1850)
Professor Dave Explains

Millard Fillmore: Last of the Whigs (1850 - 1853)
Professor Dave Explains

Practice Problem: Energy Diagrams
Professor Dave Explains

Practice Problems: Labeling Carbons
Professor Dave Explains

Practice Problem: IUPAC Nomenclature Examples
Professor Dave Explains

Practice Problem: IUPAC Nomenclature and Stereochemistry
Professor Dave Explains

Practice Problem: Newman Projections and Nomenclature
Professor Dave Explains

Practice Problem: Newman Projections of Conformational Isomers
Professor Dave Explains

Practice Problem: Analyzing Acid-Base Equilibria
Professor Dave Explains

Practice Problem: Drawing Substitution and Elimination Products (SN1/SN2/E1/E2)
Professor Dave Explains

Practice Problem: E2 on Cyclic Systems and Cyclohexane Chairs
Professor Dave Explains

Practice Problem: Site of Protonation on a Weak Base
Professor Dave Explains

Practice Problem: Mechanism - Acid Catalysis
Professor Dave Explains

Practice Problem: Hydrogenation, Isomerism, and Cyclohexane Chairs
Professor Dave Explains

Practice Problem: Ozonolysis Reactions
Professor Dave Explains

Practice Problem: Acidity of Carboxylic Acids
Professor Dave Explains

Practice Problem: Reducing Agents
Professor Dave Explains

Practice Problem: Oxidizing Agents
Professor Dave Explains

Practice Problem: Mechanism - Reaction of an Epoxide
Professor Dave Explains

Practice Problem: Synthetic Strategy
Professor Dave Explains

Practice Problem: Aromaticity
Professor Dave Explains

Practice Problem: Diels-Alder Reactions
Professor Dave Explains

Practice Problem: Grignard Reactions
Professor Dave Explains

Practice Problem: Crossed Aldol Products
Professor Dave Explains

Practice Problem: Electrophilic Aromatic Substitution Multi-Step Pathway
Professor Dave Explains

Practice Problem: Electrophilic Aromatic Substitution Rates
Professor Dave Explains

Practice Problem: Electrophilic Aromatic Substitution Retrosynthesis
Professor Dave Explains

Practice Problem: Retrosynthesis of an Alcohol
Professor Dave Explains

Practice Problem: Assigning Molecular Structure From an NMR Spectrum
Professor Dave Explains

Introduction to the Italian Language
Professor Dave Explains

Italian Phonetics Part 1: Vowel Sounds
Professor Dave Explains

Italian Phonetics Part 2: Consonant Sounds, C and G, GL and GN
Professor Dave Explains

Italian Phonetics Part 3: More Consonant Sounds, S and Z, Double Consonants
Professor Dave Explains

Italian Phonetics Part 4: Accents and Stresses
Professor Dave Explains

Italian and English: Cognates and False Cognates
Professor Dave Explains

Common Italian Greetings, Introductions, and Feelings
Professor Dave Explains

Italian Counting Numbers
Professor Dave Explains

The Italian Calendar: Seasons, Months of the Year, and Days of the Week
Professor Dave Explains

The Italian Calendar: Seasons, Months of the Year, and Days of the Week
Professor Dave Explains

Telling Time in Italian
Professor Dave Explains

Italian Adjectives: Grammar and Vocabulary
Professor Dave Explains

Giving and Receiving Directions in Italian
Professor Dave Explains

Gender in the Italian Language
Professor Dave Explains

Italian Plural Nouns and Their Exceptions
Professor Dave Explains

Special Sounds in Italian
Professor Dave Explains

Indefinite Articles in Italian
Professor Dave Explains

Use of the Word Buono in Italian
Professor Dave Explains

Italian Personal Pronouns
Professor Dave Explains

Conjugation and Usage of the Verb: Avere (To Have)
Professor Dave Explains

Italian Vocabulary: Parts of the Body
Professor Dave Explains

Italian Adjective Position and Special Adjectives
Professor Dave Explains

Conjugation and Usage of the Verb: Essere (To Be - Permanent State)
Professor Dave Explains

The Definite Article and its Use in Italian
Professor Dave Explains

Italian Vocabulary: Food
Professor Dave Explains

Use of the Word Bello and Clothing Vocabulary
Professor Dave Explains

Use of the Words: Molto, Poco, and Troppo
Professor Dave Explains

Conjugating Regular Italian Verbs Ending in -ARE
Professor Dave Explains

Conjugating the Irregular Verb: Andare (To Go)
Professor Dave Explains

Conjugating the Irregular Verb: Stare (To Be - Temporary State)
Professor Dave Explains

Conjugating the Irregular Verb: Dare (To Give)
Professor Dave Explains

Conjugating the Irregular Verb: Fare (To Do)
Professor Dave Explains

Possessive Adjectives and Pronouns in Italian
Professor Dave Explains

Italian Vocabulary: Family Members
Professor Dave Explains

Demonstrative Adjectives and Pronouns: Using Questo and Quello
Professor Dave Explains

Italian Vocabulary: Colors
Professor Dave Explains

Italian Vocabulary: Domestic Animals
Professor Dave Explains

Italian Vocabulary: Wild Animals
Professor Dave Explains

Conjugating Italian Verbs Ending in -ERE
Professor Dave Explains

Conjugating Italian Verbs Ending in -IRE
Professor Dave Explains

Modal Verbs: Dovere, Potere, and Volere
Professor Dave Explains

Direct Object Pronouns in Italian
Professor Dave Explains

Italian Vocabulary: In the Hotel
Professor Dave Explains

Prepositions in Italian: Preposizioni Articolate
Professor Dave Explains

Italian Tenses: Passato Prossimo vs. Passato Remoto
Professor Dave Explains

Using Passato Prossimo with the Verb: Avere
Professor Dave Explains

Using Passato Prossimo with the Verb: Essere
Professor Dave Explains

To Know in Italian: Sapere vs. Conoscere
Professor Dave Explains

Italian Vocabulary: Sports, Activities, and Leisure Time
Professor Dave Explains

Italian Vocabulary: Musical Instruments
Professor Dave Explains

Indirect Object Pronouns in Italian
Professor Dave Explains