Use a sum or difference formula to find the exact value of the following. 5π 7π 7π 5π COS COS + sin sin 12 12 12 12 D X vo
Use a sum or difference formula to find the exact value of the following. 5π 7π 7π 5π COS COS + sin sin 12 12 12 12 D X vo
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.3: Quadratic Equations
Problem 45E
Question
Prove the identity.
Transcribed Image Text:Use a sum or difference formula to find the exact value of the following.
5π
7π
7π
5π
COS
COS
+ sin
sin
12 12
12
12
D
X
vo
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