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a. Find sin and cos given that the terminal side of contains the point (u, v) = (5, 7)

Precalculus with Trigonometry: Concepts and Applications | 1st Edition | ISBN: 9781559533911 | Authors: Foerster ISBN: 9781559533911 468

Solution for problem R.3 Chapter 2-6

Precalculus with Trigonometry: Concepts and Applications | 1st Edition

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Precalculus with Trigonometry: Concepts and Applications | 1st Edition | ISBN: 9781559533911 | Authors: Foerster

Precalculus with Trigonometry: Concepts and Applications | 1st Edition

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Problem R.3

a. Find sin and cos given that the terminal side of contains the point (u, v) = (5, 7). b. Find decimal approximations for sin 160 and cos 160. Draw a 160 angle in standard position in a uv-coordinate system and mark the reference angle. Explain why sin 160 is positive but cos 160 is negative. c. Sketch the graphs of the parent sinusoids y = cos and y = sin . d. In which two quadrants on a uv-coordinate system is sin negative? e. For y = 4 + cos 2 , what are the transformations of the parent function graph y = cos ? Sketch the graph of the transformed function. R

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Textbook: Precalculus with Trigonometry: Concepts and Applications
Edition: 1
Author: Foerster
ISBN: 9781559533911

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a. Find sin and cos given that the terminal side of contains the point (u, v) = (5, 7)