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Materials on Mathematics





09/20/2016

WHAT is relatively prime

Math lesson

Mutually prime numbers - a mathematical concept, which should not be confused with simple numbers.

The total is only between the two concepts is that both of them are directly related to the division.

(Further…)
09/20/2016

How to prove the theorem of Vieta

How to prove the theorem of Vieta

François Viète - the famous French mathematician.

Vieta theorem allows to solve quadratic equations by the simplified scheme, which as a result save time spent on the account.

But to better understand the essence of the theorem, it is necessary to gain insight into the formulation and prove it.

(Further…)
09/19/2016

What is the numerical expression

Lesson of mathematics in Grade 2

Expressions are the foundation of mathematics. The concept is fairly widespread.

Much of what we have to deal in mathematics - and the examples and equations, and even fractions - are expressions.

(Further…)
09/19/2016

What is the square root of the arithmetic

What is the square root of the arithmetic

Any arithmetic operation has its opposite.

Addition opposite subtraction, multiplication - division.

They have their "doubles-antipodes" and exponentiation.

(Further…)
09/18/2016

WHAT is the sine and cosine

What are the sine and cosine

The study of triangles being mathematicians for thousands of years.

The science of triangles - Trigonometry - uses special values: sine and cosine.

(Further…)
09/17/2016

MEDIAN, the height and properties and their bisector

Median height and bisector and their properties

Research Triangle occupied mathematicians for centuries.

Most of the properties and theorems relating to triangles, using special line figures: median, bisector and altitude.

(Further…)
09/17/2016

How to solve quadratic equations

How to solve quadratic equations

Knowledge of how to solve quadratic equations, it is necessary and students, and students, sometimes it can help an adult in normal life.

There are several specific methods of making.

(Further…)
09/17/2016

How to find the area of ​​a triangle on the two sides

Triangle abc

Sometimes in life we ​​have to deal with situations that require knowledge of geometry. Such information is rarely used in everyday life, so forgettable.

One of the most popular questions is to find the area of ​​a triangle using the lengths of the two sides.

(Further…)