<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />

# Unit Circle

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

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.
• Video

## Evaluating Trigonometric Functions (The Unit Circle) - Overview

by CK-12 //basic
Overview
MEMORY METER
This indicates how strong in your memory this concept is
2
• Video

## 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
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

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

by CK-12 //basic
Evaluate trigonometric functions given an angle measure using the unit circle
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

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

by CK-12 //basic
Evaluate trigonometric functions using the calculator
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

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

by CK-12 //basic
Use the period of the function to evaluate sine and cosine
MEMORY METER
This indicates how strong in your memory this concept is
0