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# Unit Circle

## Determine exact values of trig ratios for common radian measures

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Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
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## Evaluating Trigonometric Functions (The Unit Circle) - Overview

by CK-12 //basic

Overview

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## Evaluating Trigonometric Functions (The Unit Circle) - Example 1

by CK-12 //basic

Find the point on the unit circle that corresponds to the given angle

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## Evaluating Trigonometric Functions (The Unit Circle) - Example 2

by CK-12 //basic

Evaluate trigonometric functions given an angle measure using the unit circle

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## Evaluating Trigonometric Functions (The Unit Circle) - Example 3

by CK-12 //basic

Evaluate trigonometric functions using the calculator

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## Evaluating Trigonometric Functions (The Unit Circle) - Example 4

by CK-12 //basic

Use the period of the function to evaluate sine and cosine

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