Using co function identities find the value of an angle

The video tutorial covers the unit circle, focusing on key points at 30, 45, and 60 degrees. It explains cofunction identities, demonstrating how sine and cosine relate to each other. The tutorial also discusses secant and cosecant functions, followed by an exploration of tangent and cotangent. The session concludes with a review and addresses student questions.

What are the three key points on the unit circle that need to be memorized?

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What are the X and Y coordinates for 30 degrees on the unit circle?

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Explain the relationship between sine and cosine using the cofunction identity for 30 degrees.

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Describe how secant and cosecant relate to angles of 120 degrees and 30 degrees.

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How does the tangent of 60 degrees relate to the cotangent of 30 degrees?

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