Precalculus 4.2 Trigonometric Functions: The Unit Circle

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What is the unit circle and why is it so fantastic? Find out here!

Video Chapters:
0:00 Intro
0:04 The Unit Circle - Trig Functions
4:33 Understanding pi/4 on the Unit Circle
7:01 Understanding pi/3 and pi/6 on the Unit Circle
9:44 Using the Unit Circle to Evaluate Trigonometric Functions
16:37 Domain and Range of Sine and Cosine
19:03 Period of Trig Functions/Even and Odd Functions
21:30 Evaluating Trigonometric Functions Using Properties
24:43 Evaluating Trigonometric Functions Using Desmos
26:12 Up Next

Playlist Text: Precalculus, 11e, Ron Larson

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Good stuff. L/T since "knowing" t/y this YT refresher ... Very clearly explained & appreciated.

gottadomor