0/ifit was FCかy)2165(6w)30 2 -36 y? cos (6XY) .3 =36 Y'cos (6X4) -36 y'cos (6xY) 2. = 36 y'cos (6XY)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 54E
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a/ ifitwas f(Ry)=1+YC05(64) so Erenl
-36 y? cos (6XY)
= 36 Ycos (6xy)
-36 ycos coxY)
= 36 y cos (6XY)
るxス
Transcribed Image Text:a/ ifitwas f(Ry)=1+YC05(64) so Erenl -36 y? cos (6XY) = 36 Ycos (6xy) -36 ycos coxY) = 36 y cos (6XY) るxス
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