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Basics of Trigonometry
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Study Material-Basics of TrigonometryThe concept of Trigonometry is given by a Greek mathematician Hipparchus.
Trigonometry is all about a right-angled triangle.
It is one of those divisions in mathematics that helps in finding the angles and
missing sides of a triangle by the help of trigonometric ratios.
The angles are either measured in radians or degrees. The usual trigonometry
angles are 0°, 30°, 45°, 60° and 90°, which are commonly used.
Trigonometry is the branch of mathematics dealing with the relations of the sides
and angles of triangles and with the relevant functions of any angles. Throughout
history, trigonometry has been applied in areas such as geodesy, surveying,
celestial mechanics, and navigation.
The six important trigonometric functions (trigonometric ratios) are calculated by
the below formulas using above figure. It is necessary to get knowledge regarding
the sides of the right angle triangle, because it defines the set of important
trigonometric functions.
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