6. Express cos 0-2sin 0 in the form of Rcos (0+a), where R>0 and O

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 28E
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What's the correct answer if the second part of the question is between 0°
6. Express cos 0-2sin 0 in the form of Rcos (0+a), where R>0 and O <a<90°.Hence, solve
the equation cos0-2 sin0=2 for 0 <0<360°.
Transcribed Image Text:6. Express cos 0-2sin 0 in the form of Rcos (0+a), where R>0 and O <a<90°.Hence, solve the equation cos0-2 sin0=2 for 0 <0<360°.
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