Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 41RE
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Topic Video
Question
find the exact value
cos151ocos1o + sin151osin1o
Expert Solution
Step 1
We have to use cosAcosB+sinAsinB= cos(A-B)
With A=151 and B=1
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