21) sin X 22) cos Z Z- A 30 40 Y 23) cos C 24) cos A 24 50
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.5: Product-to-sum And Sum-to-product Formulas
Problem 26E
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Transcribed Image Text:21) sin X
22) cos Z
50
3.
4
30
40
Y
23) cos C
24) cos A
B
24
B.
20
21
18
30
29
C
5.
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