Prove the identity. sin (x+y) = tanx+ tan y cosx cosy Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailer select the More Information Button to the right of the Rule. Statement Rule sin (x + y) cos x cos y %3D Select Rule

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 26E
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Prove the identity.
sin (x+y)
= tanx+ tan y
cosx cosy
Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailer
select the More Information Button to the right of the Rule.
Statement
Rule
sin (x + y)
cos x cos y
%3D
Select Rule
Transcribed Image Text:Prove the identity. sin (x+y) = tanx+ tan y cosx cosy Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailer select the More Information Button to the right of the Rule. Statement Rule sin (x + y) cos x cos y %3D Select Rule
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