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Introduction to Mathematics

A comprehensive journey through the fundamental concepts of mathematics. From the nature of numbe...

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Jan 11, 2026
Algebra
Pre-Algebra Foundations

The essential building blocks of math before algebra. Learn number systems, integers, fractions, ...

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Jan 14, 2026
Algebra
Algebra Fundamentals

A comprehensive introduction to algebra covering variables, expressions, equations, inequalities,...

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Jan 11, 2026
Algebra
Exponents and Powers

Laws of exponents and powers. Learn product rule, quotient rule, power rule, zero and negative ex...

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Jan 14, 2026
Algebra
Radicals and Roots

The square roots, cube roots, and nth roots. Learn to simplify radicals, rationalize denominators...

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Jan 14, 2026
Algebra
Inequalities

Introduction to linear, compound, and absolute value inequalities. Learn to solve, graph, and app...

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Jan 14, 2026
Algebra
Functions Introduction

Fundamental concepts of functions: notation, domain, range, graphing, transformations, and compos...

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Jan 14, 2026
Algebra
Linear Equations and Inequalities

Solving linear equations and inequalities. Learn one-step to multi-step equations, absolute value...

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Jan 14, 2026
Algebra
Systems of Equations

Solving systems of linear equations using graphing, substitution, elimination, and matrices. Esse...

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Jan 14, 2026
Algebra
Polynomials and Factoring

Comprehensive guide to polynomials: operations, factoring techniques, and solving polynomial equa...

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Jan 11, 2026
Algebra
Quadratic Equations Complete Guide

Quadratic equations: factoring, completing the square, quadratic formula, graphing parabolas, and...

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Jan 14, 2026
Algebra
Binomial Theorem & Pascal's Triangle

Binomial theorem for expanding (a+b)^n. Learn Pascal's Triangle, combinations, and efficient expa...

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Jan 14, 2026
Algebra
Rational Expressions & Equations

Working with algebraic fractions: simplifying, operations, solving equations, and real-world appl...

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Jan 14, 2026
Algebra PRO
Logarithms & Exponential Functions

Logarithmic and exponential functions. Learn properties, equations, graphing, and real-world appl...

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Jan 14, 2026
Algebra PRO
Complex Numbers

Explain complex numbers from imaginary unit i to polar form. Learn operations, conjugates, De Moi...

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Jan 14, 2026
Algebra
Sequences & Series

Arithmetic and geometric sequences, summation notation, infinite series, and convergence. Essenti...

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Jan 14, 2026
Algebra PRO
Graphing & Transformations

Introduction to function transformations including shifts, reflections, stretches, and compressio...

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Jan 14, 2026
Algebra
Partial Fraction Decomposition

Learn to decompose complex rational expressions into simpler fractions. Essential for calculus in...

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Jan 11, 2026
Algebra
Mastering Algebra

A comprehensive advanced algebra course covering quadratic equations, systems of equations, polyn...

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Jan 14, 2026
Geometry
Geometry Fundamentals

A comprehensive exploration of geometry covering points, lines, angles, shapes, area, volume, tra...

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Jan 11, 2026
Geometry
Foundations of Geometry

Introduction to the building blocks of geometry: points, lines, planes, angles, and their relatio...

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Jan 14, 2026
Geometry
Angles & Angle Relationships

Angle types, measurements, and relationships including complementary, supplementary, vertical ang...

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Jan 14, 2026
Geometry
Triangle Properties

Explore triangle congruence, similarity, the Pythagorean theorem, and special triangle properties.

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Jan 11, 2026
Geometry
Congruence and Similarity

Congruent and similar figures. Learn triangle congruence criteria (SSS, SAS, ASA, AAS, RHS) and s...

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Jan 14, 2026
Geometry
Quadrilaterals

Study parallelograms, rectangles, rhombi, squares, trapezoids, and their unique properties.

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Jan 11, 2026
Geometry PRO
Pythagorean Theorem and Applications

Introduction to the most famous theorem in mathematics. Learn proofs, Pythagorean triples, the co...

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Jan 14, 2026
Geometry
Polygons

Explore interior and exterior angles, regular polygons, area formulas, and tessellations.

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Jan 11, 2026
Geometry
Circles

Introduction to circle properties including radius, chords, tangents, arcs, and sector calculations.

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Jan 14, 2026
Geometry
Trigonometry Basics

Introduction to sine, cosine, and tangent. Learn SOH-CAH-TOA, solve right triangles, and apply tr...

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Jan 14, 2026
Geometry
Area & Perimeter Formulas

The essential formulas for calculating area and perimeter of 2D shapes. From basic rectangles and...

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Jan 14, 2026
Geometry
3D Geometry - Solids

Calculate volume and surface area of prisms, pyramids, cylinders, cones, and spheres.

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Jan 11, 2026
Geometry
Coordinate Geometry

Apply algebra to geometry using the coordinate plane, distance, midpoint, and slope formulas.

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Jan 11, 2026
Geometry
Surface Area & Volume

Introduction to 3D geometry calculations including surface area and volume formulas for prisms, c...

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Jan 14, 2026
Geometry
Geometric Transformations

Understand translations, reflections, rotations, dilations, and symmetry.

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Jan 11, 2026
Geometry PRO
Circle Theorems

The essential theorems of circle geometry including inscribed angles, central angles, tangent pro...

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Jan 14, 2026
Geometry PRO
Vectors in Geometry

Introduction to vector concepts for geometry including magnitude, direction, vector operations, p...

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Jan 14, 2026
Geometry
Geometric Proofs

The art of mathematical reasoning with two-column proofs, paragraph proofs, and proof strategies ...

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Jan 14, 2026
Geometry
Geometric Constructions

Introduction to the classical compass and straightedge constructions including perpendicular bise...

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Jan 14, 2026
Trigonometry
Introduction to Trigonometry

Discover the foundations of trigonometry including angles, radian measure, the unit circle, and t...

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Jan 11, 2026
Trigonometry
Right Triangle Trigonometry

Apply trigonometric ratios to solve right triangle problems including SOHCAHTOA, angles of elevat...

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Jan 11, 2026
Trigonometry
Unit Circle and Circular Functions

Introduction to the unit circle as the foundation for trigonometric functions, including coordina...

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Jan 14, 2026
Trigonometry PRO
Trigonometric Functions and Graphs

Learn to graph sine, cosine, and tangent functions, understanding amplitude, period, phase shift,...

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Jan 11, 2026
Trigonometry
Trigonometric Identities

Fundamental and derived trigonometric identities including Pythagorean, reciprocal, quotient, and...

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Jan 14, 2026
Trigonometry PRO
Sum and Difference Formulas

Learn to expand and simplify sin(A ± B), cos(A ± B), and tan(A ± B) using powerful addition and s...

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Jan 11, 2026
Trigonometry
Double Angle Formulas

Master the double angle formulas for sine, cosine, and tangent, with applications in simplificati...

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Jan 11, 2026
Trigonometry
Half-Angle Formulas

Learn the half-angle formulas for sine, cosine, and tangent, enabling you to find exact values of...

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Jan 11, 2026
Trigonometry
Inverse Trigonometric Functions

Understand arcsin, arccos, arctan and their properties, domains, ranges, and applications in solv...

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Jan 11, 2026
Trigonometry PRO
Solving Trigonometric Equations

Master techniques for solving trig equations including factoring, identities, and finding all sol...

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Jan 11, 2026
Trigonometry
Law of Sines

Learn to solve oblique triangles using the Law of Sines, including the ambiguous case (SSA) and r...

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Jan 11, 2026
Trigonometry
Law of Cosines

Master the Law of Cosines for solving triangles when given SAS or SSS, and understand its relatio...

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Jan 11, 2026
Trigonometry
Polar Coordinates

Master the polar coordinate system, convert between polar and rectangular forms, and graph polar ...

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Jan 11, 2026
Trigonometry
Complex Numbers in Trigonometric Form

Express complex numbers in polar/trigonometric form, multiply and divide using DeMoivre's theorem...

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Jan 11, 2026
Calculus
Limits and Continuity

The foundational concepts of calculus. Learn how to evaluate limits, understand continuity, and a...

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Jan 14, 2026
Calculus
Introduction to Derivatives

Fundamental concepts of differentiation. Learn the definition of derivatives, essential different...

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Jan 14, 2026
Calculus
Applications of Derivatives

Apply differentiation techniques to solve real-world problems. Master optimization, curve sketchi...

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Jan 11, 2026
Calculus
Differentiation Techniques

Advanced differentiation methods. Learn the product rule, quotient rule, chain rule, implicit dif...

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Jan 14, 2026
Calculus
Introduction to Integrals

Fundamentals of integration. Learn antiderivatives, integration rules, u-substitution, definite i...

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Jan 14, 2026
Calculus
Techniques of Integration

Advanced integration methods. Learn integration by parts, trigonometric integrals, trig substitut...

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Jan 14, 2026
Calculus
Applications of Integration

Apply integration to solve real-world problems: area between curves, volumes of revolution, arc l...

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Jan 11, 2026
Linear Algebra
Linear Algebra Essentials

A comprehensive introduction to linear algebra covering vectors, matrices, linear transformations...

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Jan 11, 2026
Linear Algebra
Vector Spaces and Subspaces

Vector spaces with simple examples: 10 axioms, subspaces, span, linear independence, basis, dimen...

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Jan 14, 2026
Linear Algebra
Orthogonality and Projections

A comprehensive study of orthogonal vectors, orthonormal bases, projections, Gram-Schmidt process...

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Jan 11, 2026
Linear Algebra
Eigenvalues and Eigenvectors

Introduction to eigenvalues, eigenvectors, characteristic equations, diagonalization, spectral de...

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Jan 14, 2026
Linear Algebra
Singular Value Decomposition

Introduction to SVD: the most important matrix decomposition in data science. Learn geometric int...

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Jan 14, 2026
Linear Algebra
Diagonalization

Matrix diagonalization: understand diagonalizable matrices, algebraic and geometric multiplicity,...

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Jan 14, 2026
Statistics
Statistics Introduction

A comprehensive introduction to statistics covering data types, descriptive statistics, probabili...

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Jan 11, 2026
Applied Mathematics
Statics Fundamentals

A comprehensive introduction to engineering statics covering forces, equilibrium, moments, trusse...

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Jan 11, 2026
Applied Mathematics
Dynamics and Motion

A comprehensive study of motion, forces, energy, and momentum. Master kinematics, Newton's laws, ...

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Jan 11, 2026
Overall
Programming Fundamentals

A comprehensive introduction to programming covering variables, data types, control flow, functio...

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Jan 11, 2026
Java
Java Fundamentals

A comprehensive introduction to Java programming covering syntax, OOP principles, collections, ex...

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Jan 11, 2026
Java PRO
Java Advanced

Advanced Java concepts including generics, streams, concurrency, design patterns, JVM internals, ...

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Jan 14, 2026
Java
Data Structures and Algorithms (Java)

Introduction to the fundamental data structures and algorithms using Java. Learn arrays, linked l...

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Jan 14, 2026
C++
C++ Programming

A comprehensive guide to C++ programming covering fundamentals, object-oriented programming, memo...

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Jan 11, 2026
Python
Python for Everyone

A comprehensive Python programming course covering fundamentals, data structures, functions, OOP,...

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Jan 11, 2026
Web Development
HTML Introduction

Introduction to HTML from the ground up. Learn document structure, text formatting, lists, links,...

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Jan 14, 2026
Web Development
CSS Introduction

CSS fundamentals from selectors to responsive design. Learn styling, the box model, positioning, ...

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Jan 14, 2026
Web Development
CSS Advanced

Advanced CSS techniques including Flexbox, Grid, animations, transforms, CSS variables, and moder...

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Jan 14, 2026
Web Development PRO
CSS Flexbox Layout

CSS Flexbox from fundamentals to advanced techniques. Learn the flex container, item properties, ...

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Jan 14, 2026
Web Development
CSS Bootstrap

Bootstrap 5 from fundamentals to advanced components. Build responsive, mobile-first websites wit...

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Jan 14, 2026
Web Development
CSS Tailwind

Tailwind CSS from fundamentals to advanced techniques. Learn the utility-first approach, responsi...

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Jan 14, 2026
Web Development
JavaScript Introduction

Introduction to JavaScript from the ground up. Learn variables, data types, functions, DOM manipu...

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Jan 14, 2026
Android Development
Android Development Introduction

A comprehensive guide to Android development with Java. Learn to build professional mobile apps t...

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Jan 11, 2026
Android Development PRO
Android Development Advanced

Professional Android development techniques. This 10-section advanced guide covers Retrofit netwo...

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Jan 14, 2026
Android Development
Android User Interfaces (XML)

Android UI development with XML layouts. This comprehensive 25-section professional guide covers ...

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Jan 14, 2026
Overall
Introduction to Physics

A comprehensive introduction to physics covering mechanics, energy, waves, thermodynamics, electr...

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Jan 11, 2026
Classical Mechanics
Classical Mechanics

A comprehensive study of Newtonian mechanics covering kinematics, dynamics, energy, momentum, rot...

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Jan 11, 2026
Thermodynamics
Thermodynamics

Introduction to the science of heat, energy, and entropy - from molecular motion to engines and b...

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Jan 14, 2026
Quantum Mechanics
Quantum Mechanics

Explore the bizarre and beautiful world of quantum physics - wave functions, uncertainty, and the...

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Jan 11, 2026
Overall
Introduction to Chemistry

Discover the central science - from atoms and molecules to reactions and the periodic table.

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Jan 11, 2026
Organic Chemistry
Organic Chemistry

Introduction to the chemistry of carbon - from hydrocarbons to complex biomolecules and reaction ...

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Jan 14, 2026
Inorganic Chemistry
Inorganic Chemistry

Explore the chemistry of metals, minerals, and coordination compounds - from crystal structures t...

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Jan 11, 2026
Physical Chemistry
Physical Chemistry

Bridge physics and chemistry - thermodynamics, kinetics, quantum chemistry, and statistical mecha...

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Jan 09, 2026
Overall
Neural Networks Introduction

A comprehensive introduction to neural networks and deep learning covering perceptrons, activatio...

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Jan 11, 2026
Overall
Convolutional Neural Networks (CNNs)

Introduction to Convolutional Neural Networks covering architecture, convolution operations, pool...

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Jan 14, 2026
Overall
Recurrent Neural Networks (RNNs)

Introduction to Recurrent Neural Networks covering sequential data processing, LSTM, GRU, bidirec...

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Jan 14, 2026

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