Using the vectors P = î cos 0 + ŷ sin0, Q = î cos 9 – ŷ sin o, R = â cos 4 + ŷ sin ø, prove the familiar trigonometric identities sin(0 +4) = sin 0 cos y + cos 0 sin o, cos(0 + y) = cos 0 cos o – sin 0 sin . %D
Using the vectors P = î cos 0 + ŷ sin0, Q = î cos 9 – ŷ sin o, R = â cos 4 + ŷ sin ø, prove the familiar trigonometric identities sin(0 +4) = sin 0 cos y + cos 0 sin o, cos(0 + y) = cos 0 cos o – sin 0 sin . %D
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 71E
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