Chapter 1 – Unit Circle and Definitions

Topic 1.6
Pythagorean Theorem – Trig Version

Pythagorean Theorem – Trig Version allows students to find the value of sin when given cos and vice versa. Examples are done using the standard trigonometric method with the hypotenuse of length 1, and also using the geometric definition where the hypotenuse can have arbitrary length.

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Trigonometry by Mike Weimerskirch and the University of Minnesota Board of Regents is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.