1. Given that the radius r of the unit circle is 1, what would be the values of sin 0 and cos 0 inthe unit circle?2. In which quadrant is the reference angle unnecessary in finding the values of thetrigonometric ratios?3. Do all angles have values for all six trigonometric ratios? Why or why not?

Answered: 1. Given that the radius r of the unit…

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1. Given that the radius r of the unit circle is 1, what would be the values of sin 0 and cos 0 in the unit circle?

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter5: Trigonometric Functions: Right Triangle Approach

Section5.CR: Chapter Review

Problem 3CC

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Question

1. Given that the radius r of the unit circle is 1, what would be the values of sin 0 and cos 0 in
the unit circle?
2. In which quadrant is the reference angle unnecessary in finding the values of the
trigonometric ratios?
3. Do all angles have values for all six trigonometric ratios? Why or why not?

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