Introduction of Trigonometry

 

What is Trigonometry?

Trigonometry is derived from the two words, Trigonon, which means triangle, and Metrôn, which means measure. Trigonometry is the branch of mathematics that deals with particular angles’ functions and how to use those functions in calculations.

Trigonometric ratios

Triangle side length ratios are known as trigonometric ratios. These ratios explain how the ratio of a right triangle’s sides to each angle works in trigonometry.

The following list includes the fundamental trigonometric ratio formulas.

sinθ=PerpendicularHypotenuse$\sin �=\frac{�������������}{����������}$

cosθ=baseHypotenuse$\cos �=\frac{����}{����������}$

tanθ=PerpendicularBase$\tan �=\frac{�������������}{����}$

cscθ=HypotenusePerpendicular$\csc �=\frac{����������}{�������������}$

secθ=HypotenusePerpendicular$\sec �=\frac{����������}{�������������}$

secθ=HypotenuseBase$\sec �=\frac{����������}{����}$

cotθ=BasePerpendicular$\cot �=\frac{����}{�������������}$

Learn about Value of Tan 180