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Establish the identity. sin 0+ sin (30) 2 sin (20) = cos 0 Choose the correct sequence of steps to establish the identity. O A. sin 0 + sin (30) 2 sin (20) sin 0 2 sin (20) O B. sin 0+ sin (30) 2 sin (20) = cos 0 2 sin (20) -2 sin 0 cos (20) = cos 0 2 sin (20) OC. sin 0 + sin (30) 2 sin (20) cos 0 2 sin (20) = cos 0 2 sin (20) O D. sin 0+ sin (30) 2 cos (20) cos 0 2 sin (20) = cos 0 2 sin (20)

Establish the identity. sin 0+ sin (30) 2 sin (20) = cos 0 Choose the correct sequence of steps to establish the identity. O A. sin 0 + sin (30) 2 sin (20) sin 0 2 sin (20) O B. sin 0+ sin (30) 2 sin (20) = cos 0 2 sin (20) -2 sin 0 cos (20) = cos 0 2 sin (20) OC. sin 0 + sin (30) 2 sin (20) cos 0 2 sin (20) = cos 0 2 sin (20) O D. sin 0+ sin (30) 2 cos (20) cos 0 2 sin (20) = cos 0 2 sin (20)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 71E
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Establish the identity. sin 0+ sin (30) 2 sin (20) = cos 0 Choose the correct sequence of steps to establish the identity. O A. sin 0 + sin (30) 2 sin (20) sin 0 2 sin (20) O B. sin 0+ sin (30) 2 sin (20) = cos 0 2 sin (20) -2 sin 0 cos (20) = cos 0 2 sin (20) OC. sin 0 + sin (30) 2 sin (20) cos 0 2 sin (20) = cos 0 2 sin (20) O D. sin 0+ sin (30) 2 cos (20) cos 0 2 sin (20) = cos 0 2 sin (20)
Transcribed Image Text:Establish the identity. sin 0+ sin (30) 2 sin (20) = cos 0 Choose the correct sequence of steps to establish the identity. O A. sin 0 + sin (30) 2 sin (20) sin 0 2 sin (20) O B. sin 0+ sin (30) 2 sin (20) = cos 0 2 sin (20) -2 sin 0 cos (20) = cos 0 2 sin (20) OC. sin 0 + sin (30) 2 sin (20) cos 0 2 sin (20) = cos 0 2 sin (20) O D. sin 0+ sin (30) 2 cos (20) cos 0 2 sin (20) = cos 0 2 sin (20)
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