### REAL AND COMPLEX NUMBERS

The union of racional and irracional numbers forms a set called real numbers. If we remember the different types of numerical sets, we see that we have: Rational numbers also contain integers numbers that have […]

### Calculation of areas – Definite Integral

Calculation of areas – Definite Integral Definite Integral of a function is used to calculate the areas of flat regions, which are delimited by curves and straight lines. Areas of flat regions: […]

### Binomials theory

POLYNOMIALS: Binomials Binomials are polynomials consist of two monomials separated by a plus (+) or a minus (-) sign. Binomials operations are: 1.- Binomial squared: is equal to the square of the […]

### Variations theory

Variations Variations is to group elements, when it matters the order, we do not take all the items and these can be repeated or not. Thus the variations may be: Variations without repetition […]

### Permutations Theory

Permutations Permutations are multiplicative events where the number of possibilities is decreasing and whether it is important the order of a permutation, it is an arrangement of a set of objects in a defined […]

### Divisibility theory

Divisibility Divisibility is the property of an integer number to be divided by another, resulting an integer number. Where a and b, two integers numbers, we will say that “a” is a multiple of […]

### Combined Operations theory

Combined Operations We call Combined Operations to those in which several arithmetic operations appear to be solved. To get the right result you need to follow some rules and take into account the priority […]

### Radicals theory

Radicals Radicals are expressions with the form: Where n Є N and a Є R; provided that when a is negative, n must be odd. n=index; a=radicand; m=exponent. A radical can be expressed […]

### Logarithms Theory

Logarithms Definition of Logarithms: Be a positive real number non-zero and different to 1, and A another positive and non-zero number. It is called the logarithm of the number A in the base a, […]

### Fractions theory

Fractions Definition of Fractions A fraction is the quotient of two integers a and b, which is represented as follows: b -> denominator, indicates the number of parties that has been split the unit. […]