How to find the Angle Given Unit Circle and Equation with Cosine

The video tutorial explains how to solve a trigonometric equation involving cosine and theta. It guides students through finding the acute angle that corresponds to a given cosine value using the unit circle. The tutorial emphasizes the importance of understanding the unit circle and the relationship between angles and their cosine values. It also covers the concept of inverse cosine and the constraints of finding angles within specific quadrants. The session concludes with a problem-solving example to reinforce the concepts discussed.

Describe the relationship between the X coordinate on the unit circle and the cosine of an angle.

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Why is it important to constrain the angle when finding the inverse of cosine?

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