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# Mathematical formulas, theorems and definitions

• ## Useful [Algebra] (10)

Pre-algebra, algebra and advanced algebra. Equations and inequalities, systems, percents, identities, fractions, sequences and series, exponents, functions, logarithms.
• ## Useful [Trigonometry] (4)

Trigonometric functions: sine, cosine, tangent, cotangent. Trigonometric equations and inequalities, graphing, identities, reduction. Reverse functions.
• ## Useful [Geometry] (1)

Points, lines and angles. Plane figures (triangles, quadrilaterals, circles, polygons) and 3D figures (cones, cubes, cylinders, pyramids, prisms). Similarities.
• ## Useful [Probability and statistics] (1)

Basic and more complex algebra-based probabilities. Combinatorics: factorials, permutations, combinations, trees of opportunities. Statistics.
• ## Useful [Calculus] (2)

Limits of functions, infinity, continuity, sequences, ordinary and partial derivatives, indefinite and definite integrals, advanced functions and their families. Vectors.
• ## Useful [High-level mathematics] (1)

Advanced algebra, calculus, geometry, probability and statistics, analysis, differential equations, discrete and business mathematics, number theory.