factor the expression and use the fundame ies to simplify. Use a graphing utility to cl esult graphically.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.1: Verifying Trigonometric Identities
Problem 57E
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Factoring Trigonometric Expressions In Exerc
45-54, factor the expression and use the fundame
identities to simplify. Use a graphing utility to cl
your result graphically.
47.
cos²x - 4
cos x - 2
Transcribed Image Text:Factoring Trigonometric Expressions In Exerc 45-54, factor the expression and use the fundame identities to simplify. Use a graphing utility to cl your result graphically. 47. cos²x - 4 cos x - 2
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