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Home  /  Precalculus, 2nd Edition (2e)  /  Chapter 5 · Trigonometric Functions
Section 5.2

Unit Circle: Sine and Cosine Functions

Defining sine and cosine via the unit circle; reference angles; exact values for special angles.

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Chapter 5 · Trigonometric Functions
5.1 5.2 5.3 5.4
Lesson

Lesson on the Unit Circle and Circular Functions

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Lesson

Lesson Using the Unit Circle to Determine Domains of Circular Functions

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Lesson

Lesson on Values of Circular Functions

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Lesson

Lesson on Inverse Trig and Using the Unit Circle

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Lesson

Lesson on Function Values as Line Segments and the Unit Circle

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