1. Write the x and y coordinates of any point on the unit circle in terms of the angle corresponding to that point (remember how you used the unit circle to calculate Ꮎ the values of trigonometric functions in Precalculus).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 71E
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1. Write the and
X
coordinates of any point on the unit circle in terms of the angle corresponding to that point (remember how you used the unit circle to calculate
the values of trigonometric functions in Precalculus).
2. Write
and
dx
in terms of de ·
3. Using this, write an integral (in terms of ) for the length of the unit circle.
dy
Transcribed Image Text:1. Write the and X coordinates of any point on the unit circle in terms of the angle corresponding to that point (remember how you used the unit circle to calculate the values of trigonometric functions in Precalculus). 2. Write and dx in terms of de · 3. Using this, write an integral (in terms of ) for the length of the unit circle. dy
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