## Unit Circle Figure2a.pdf - Section 2: Notes and Guided Practice

Unit Circle Figure2a.pdf

# Sine and Cosine on the Unit Circle

Unit 7: Trigonometry: The Unit Circle
Lesson 4 of 9

## Big Idea: Now that we've established the structure of the unit circle, it's a short leap to understaning our new, "extended" definitions of sine and cosine.

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Standards:
Subject(s):
Math, Trigonometry, Trigonometric functions, unit circle, radius, right triangle, sine, cosine, period
72 minutes

### James Dunseith

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