Mathematics - the science, which incorporated all aspects of our lives. It is no coincidence classes in mathematics are taught to children from primary school, and in additional education establishments mathematics is a leader in demand.

Mathematics accurate and extensive science. Its great variety of topics. Section, which examines the trigonometric functions and the relationship between the angles and sides of a triangle is called trigonometry. The main objective of trigonometry - calculation of the unknown quantities of the triangle, if the values ​​of its other values.

Trigonometry, according to some sources, was created by the ancient astronomers in the 2nd century BC. e. A famous theorem of Pythagoras was the most important achievement of the time. In the following centuries, trigonometry developed on the basis of the Central Asian works of Persian and Indian scientists. Modern look trigonometry gave Leonhard Euler. The main objective of trigonometry in real life - to measure the distance between inaccessible obektami.Trigonometriya widely used in fields such as chemistry, medicine, acoustics, optics, electronics, statistics, biology. There are many areas that use trigonometry and trigonometric functions. Trigonometry and trigonometric functions are used in astronomy, sea and air navigation, in acoustics, optics, electronics, architecture and other areas.

Trigonometry is given a large amount of attention in many examinations, competitions and other educational events. Many students like trigonometry geometry section gives very hard. Illiterate explanation of teachers leads children to fear of control geometry, low self-esteem, conflict, and other troubles. The main thing in this situation, the time to ask for help. The child will learn to easily solve trigonometric problems using trigonometric functions in other tasks. In some cases, children who "do not give" trigonometry in school, loved it after a few more sessions. They understood trigonometry - it's easy and interesting.