For positive acute angles A and B, it is known that cos A = and sin B = 20. Find the 17 29 value of cos(A-B) in simplest form.
For positive acute angles A and B, it is known that cos A = and sin B = 20. Find the 17 29 value of cos(A-B) in simplest form.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 77E
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For positive acute angles A and B, it is known that cos A= and sin B = 20. Find the
value of cos(AB) in simplest form.
Answer Attempt 2 out of 2
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Transcribed Image Text:De X
G rosiner
My Col
Comm
U Rosens
(399 un
S FRQ #4
DeltaM
(399 ur +
838895/6e3dc56b6dffa269ad1077e13927f803
☆ 다 ② ㄷ
gle Sum and Difference
A This is the only question in this section.
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For positive acute angles A and B, it is known that cos A= and sin B = 20. Find the
value of cos(AB) in simplest form.
Answer Attempt 2 out of 2
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