Additional Resources:

In this lesson, we will continue to learn about trigonometric identities. Here, we will focus on half-angle identities. We will use these identities to find the exact value of a trigonometric function. Additionally, we will see problems where we need to find function values of s/2 given information about s. Lastly, we will look at an example of how to verify a trigonometric identity using half-angle identities.
Half-Angle-Identities Resources:
PatrickJMT - Video YouTube - Video
Text Lessons:
Dummies - Text Lesson Intmath - Text Lesson
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