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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![Prove the following identities.
cos( - )V
sin x/2
sin x
sec x/2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F15c0289e-b23f-418e-a8b2-cf871bb33bb5%2F3e3c6880-3368-4552-9410-51a3085c35a3%2Flh599w_processed.png&w=3840&q=75)
Transcribed Image Text:Prove the following identities.
cos( - )V
sin x/2
sin x
sec x/2
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