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Cubens is the best educational portal for independent and remote study of mathematics. Cubens contains convenient mathematical handbook, where all the topics are organized into sections, which include elementary, school and higher mathematics.
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Handbook
- Numbers and expressions
- Divisibility of integers, divisibility rules
- Prime and composite numbers Prime factors
- The greatest common divisor and least common multiple
- Interest, the percentage of the number
- Real numbers, numerical sets
- The proportions and relations, direct and inverse proportionality
- Module number and module properties
- Arithmetic and geometric
- Algebraic expressions a single term and a polynomial
- Formulas of reduced multiplication
- Polynomial. Division of polynomial by polynomial
- Vieta’s formula and the roots of the polynomial
- The degree properties degree
- The root of n-th degree, the properties of the roots of the nth degree
- The logarithm of a number, properties of logarithms
- A sequence of numbers, the method of mathematical induction
- Arithmetic progression sum of arithmetic progression
- Geometric progression, sum of geometric progression
- Equations with one variable, the range of permissible values equation
- Inequalities with one variable inequalities DHS
- Diagram solving equations, change of variables
- Solving inequalities, interval methods
- Systems of equations solving systems of linear equations
- Systems of inequalities, solving systems of linear inequalities
- Linear equations and inequalities
- The quadratic equation, the theorem of vieta
- Square inequalities
- Fractional equations, how razvesti fractional equation
- Fractional inequality, as razvesti fractional inequalities
- Equations and inequalities with modules, the geometric meaning of the module
- Irrational equations
- Irrational inequalities
- Exponential equations
- Exponential inequalities
- Pokaznikiv-exponential equations
- Logarithmic equations
- Logarithmic inequality
- System of linear equations
- Function, scope and variety of function values
- The domain of the function
- The graph of the function
- Even functions, odd functions
- Properties of functions
- Increasing functions, decreasing functions
- The continuity of the function
- The periodicity of the function
- Reverse function
- The asymptotes of the graph of a function
- Elementary transformations the graph of a function
- Linear function, graph of a linear function
- Linear-fractional function
- Quadratic function, graph quadratic functions
- Root function, the graph of the function root
- The power function
- Exponential function graph exponential functions
- Logarithmic function, graph of logarithmic function
- The limit of the function
- Limit of function at infinity
- The calculation of the limit of a function
- The derivative of a function to find the derivative of the function
- Table of derivatives
- Application of derivative to the study of the function
- Differential of a function, finding the differential
- The second derivative, inflection point
- The study of functions, graphing functions
- Integral and integral
- Definite integral
- Calculation of areas and volumes using definite integral
- Trigonometry. Measuring angles
- Permutations
- Fractions, types of fractions
- Decimals
- Dividing decimals multiplying decimals
- Reducing fractions, the construction of fractions to a common denominator
- Multiplying fractions
- Addition and subtraction of fractions
- Dividing fractions
- Convert improper fractions to a mixed number
- Convert mixed number to improper fraction
- Converting decimals to fractions
- The arithmetic mean
- Maths via Skype with a tutor
- 5 tips to programmers for a successful interview
- What is GDZ and what does it need?
- The base of «the core collection» — the best essays and essays for students
- Courses QAQC, testing lions
- Workbooks for preschoolers of Fedienko: learn easy and fun
- Why choose QA Logos Academy?
Tables and formulas
- Multiplication table, table squares, table of cubes, the table of degrees
- Multiplication table
- Table of squares
- Table cubes
- Table of degrees
- Table factoral
- Table numbers
- Division table
- Table Bradis of cosines, law of sines, tangents, cotangents
- Table of cosine
- The table of sines
- Table of tangents
- Table kotangens
- Table of derivatives of elementary functions, derivative of a function
- Formulas of reduced multiplication
- Contacts:
- [email protected]
- © 2024 Cubens
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Источники:
https://calculator-online.net/ru/proportion-calculator/&rut=24b063e267070367ca18101068127fe7c0db1b9d8919f6d56317d4a5862b0715
https://ru.wikihow.com/%D0%B2%D1%8B%D1%87%D0%B8%D1%81%D0%BB%D0%B8%D1%82%D1%8C-%D0%BF%D1%80%D0%BE%D0%BF%D0%BE%D1%80%D1%86%D0%B8%D1%8E&rut=cf0859bdc5cc8bf3721708edd5350053d319a95f92fd28ee832d39a365369234
https://cubens.com/ru/handbook/numbers-and-equestions/proportions/&rut=032fe6acbe90c3a31e4992d3a5d3eed40300da0e5e704a1b8257ef35e88ebada