Write cos(19t) cos(11t) of different frequencies. product of two trigonometric functions

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 81RE
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Write cos(19t) cos(11t) as a
of different frequencies.
cos(19t) cos(11t) =
product of two trigonometric functions
Transcribed Image Text:Write cos(19t) cos(11t) as a of different frequencies. cos(19t) cos(11t) = product of two trigonometric functions
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