Instructional Video
Khan Academy: Example: Unit Circle Definition to Calculate Sin and Cos Instructional Video
Khan Academy

Khan Academy: Example: Unit Circle Definition to Calculate Sin and Cos

9th - 10th Standards
Explains how to use the unit circle definition to calculate sin and cos of multiple angles. [15:26]
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Instructional Video
Khan Academy: Example: Trig Function Values Using Unit Circle Definition Instructional Video
Khan Academy

Khan Academy: Example: Trig Function Values Using Unit Circle Definition

9th - 10th Standards
Worked example that uses the unit circle definition to evaluate trig functions. [11:24]
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