Angle x lies in the first quadrant such that: cosx=3 5 and angle y lies in the second quadrant such that siny= 7 25 Determine an exact value for cos (x−y). *will need to use a compound angle formula
Angle x lies in the first quadrant such that: cosx=3 5 and angle y lies in the second quadrant such that siny= 7 25 Determine an exact value for cos (x−y). *will need to use a compound angle formula
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 16E
Related questions
Question
Angle x lies in the first quadrant such that:
cosx=3
5
and angle y lies in the second quadrant such that
siny= 7
25
Determine an exact value for cos (x−y).
*will need to use a compound angle formula
Please write clearly thank you.
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