Which is NOT a trigonometric identity? O sin(a - b) = sin a cos b- cos a sin b O tan(a - b) = (an a-tan b 1+tan a tanb O sin(a + b) = sin a cos b + cos a sin b O no correct answer tan n+tan b O tan(a + b) = 1-tan a tan b

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.1: Verifying Trigonometric Identities
Problem 49E
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Which is NOT a trigonometric identity? sin(a - b) = sin a cos b - cos a sin b tan(a - b) = tan a - tan b / 1 + tan a tan b sin(a + b) = sin a cos b + cos a sin b no correct answer tan(a + b) = tan a + tan b / 1 - tan a tan b
Which is NOT a trigonometric identity?
O sin(a – b) = sin a cos b
- cos a sin b
%3D
O tan(a – b) =
tan a-tan b
1+tan a tan b
O sin(a + b) = sin a cos b + cos a sin b
O no correct answer
tan n+tan b
O tan(a +b)
1-tan a tan b
Transcribed Image Text:Which is NOT a trigonometric identity? O sin(a – b) = sin a cos b - cos a sin b %3D O tan(a – b) = tan a-tan b 1+tan a tan b O sin(a + b) = sin a cos b + cos a sin b O no correct answer tan n+tan b O tan(a +b) 1-tan a tan b
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