Use an Addition or Subtraction Formula to find the exact value of the expression. cos(165°)
Use an Addition or Subtraction Formula to find the exact value of the expression. cos(165°)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 15E
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cos(165°)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F05cf7d90-82b1-4600-90af-c1fd169002d7%2F94471a47-4477-419a-8db3-e0f6940183b2%2Fxirvn1a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Use an Addition or Subtraction Formula to find the exact value of the expression.
cos(165°)
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