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# Sine, Cosine, and Tangent Functions

## Trigonometric ratios based on sides of right triangles in relation to an angle.

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## Sine, Cosine, Tangent

by CK-12 //basic

Find the sine, cosine, and tangent of right triangles.

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• Video

## Introduction to Trigonometric Functions Using Triangles

by CK-12 //basic

Defines trigonometric functions using right triangles.

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