### Probability

We often use the word “probability“ in ordinary language; so, for example: “It is likely that tomorrow can not come” When we say these kinds of sentences, we want to express that we are […]

### Successions

A succession is an ordered sequence of numbers, such as: A succession of real numbers is an application of the set N (set of natural number excluding zero) in the set R of the real […]

### 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 […]