angle of measure intersects the unit circle at point (, ). What is the exact value of cos():

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 14E
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An angle of measure intersects the unit circle at point (, ). What is the exact value of cos()
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Transcribed Image Text:All changes saved /3 An angle of measure intersects the unit circle at point (, ). What is the exact value of cos() 2
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