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# Sine, Cosine, Tangent

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

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Sine, Cosine, Tangent

by CK-12 //basic
Find the sine, cosine, and tangent of right triangles.
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• Video

## The Trigonometric Ratios Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on trigonometric ratios.
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• Video

## The Trigonometric Ratios Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Trigonometric Ratios".
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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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