introduction to trigonometry

A branch of mathematics which deals with the problems related to right angled triangles. It is the study of relationship between the sides and angles of a ...

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Initially, the trigonometric functions are defined below, from a standard right triangle as shown below in Figure 1. This form is used for right triangle.

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define the six trigonometric functions: sine, cosine, tangent, cosecant, secant, and cotangent. These six functions are abbreviated sin, cos, tan, csc, sec, and.

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