# Explainers [1–100 of 1281 explainers]

- Integration by Substitution: Definite Integrals
- Properties of Water
- Folds
- Length and Area in the Coordinate Plane
- Relations and Functions
- Earthquakes
- Proving Trigonometric Identities
- Points of Intersection of Parametric Equations
- Matter and Density
- Set Notation
- Stars and Galaxies
- Displacement–Time Graphs
- Small-Angle Approximations
- Newton–Raphson Method
- Ionic Bonds
- Electrons and Energy Levels
- Binomial Distribution
- Surds
- Multiplying and Dividing Rational Expressions
- Tree Diagrams
- Changes of State
- Types of Nonrandom Sampling
- Sampling Methods
- Electronic Configurations
- Models in Mechanics
- The Atom
- Multiplying Polynomials
- Exact Values of Trigonometric Ratios
- Solving Systems of Linear Equations Graphically
- Properties of Determinants
- The Pythagorean Theorem in 3D
- Factors in Faulty Thinking
- Benefits of Philosophical Thinking
- Definitions and Functions of Philosophy
- Criticism, Debate, and Tolerance
- Finding Means and Standard Deviations in Normal Distributions
- Skepticism
- Equations of Parallel and Perpendicular Lines
- International Economic Relations and Balance of Payment Accounts
- Banks
- National Income
- Connected Particles
- Simplifying Algebraic Fractions
- Inverse Trigonometric Functions
- Analysis, Synthesis, Abstraction, and Generalization
- Factoring Algebraic Expressions
- Origins of Philosophy
- Reverse Chain Rule
- Understanding Functions
- Sample and Population
- Arc Lengths
- Market Failure and the Role of the Government
- Evaluating Reciprocal Trigonometric Functions
- Independent Events
- Vectors in Kinematics
- Modeling with Trigonometric Functions
- Properties of Tangents and Chords
- Midpoints and Perpendicular Bisectors
- Approximating a Binomial Distribution
- Separable Differential Equations
- Vector Methods with Projectiles
- Mathematical Logic and Proof
- Projectile Motion Formulae
- Horizontal Projectile Motion
- Equations of Straight Lines
- Types of Variables
- Systems of Linear Equations
- Binomial Theorem: Negative and Fractional Exponents
- Intersections of Circles and Lines
- Components of Public Finance
- Five Patterns of Thinking
- Projectile Motion at Any Angle
- Simplifying Expressions: Rules of Exponents
- Completing the Square
- Factors of Production
- Characteristics of Philosophical Thinking
- Graphing Factorized Cubic Functions
- Natural Logarithmic Equations
- Solving Systems of Equations Graphically
- Vector Quantities
- Vectors: Geometric Approach
- Recursive Formula of a Sequence
- Probability of Simple Events
- Two-Step Equations
- Integers
- Experimental Probability
- Multiplying Decimals
- 3D Shapes
- Circles and Triangles
- Rationalizing Denominators of Radicals
- Position Vectors
- Trigonometric Integrals
- The Preparation and Physical Properties of Oxygen
- Areas of Sectors and Segments
- Simplifying Numerical Expressions: Negative and Fractional Exponents
- Linear Inequalities
- Applications of Quadratic Equations
- Modeling with Straight Lines
- What Is Thinking?
- Money