Verify the identity by completing each step. sin(a + B) sin(a)sin(B) = cot(a) + cot(8) sin(a + B) [apply sum and difference formula] sin(a)sin(8) [write as TWO fractions] %3D [simplify] = cot(a) + cot(8)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section: Chapter Questions
Problem 18RE
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Verify the identity by completing each step.
sin(a + B)
sin(a)sin(B)
cot(a) + cot(8)
||
sin(a + B)
[apply sum and difference formula]
sin(a)sin(8)
[write as TWO fractions]
%3D
[simplify]
%3D
= cot(a) + cot(8)
Transcribed Image Text:Verify the identity by completing each step. sin(a + B) sin(a)sin(B) cot(a) + cot(8) || sin(a + B) [apply sum and difference formula] sin(a)sin(8) [write as TWO fractions] %3D [simplify] %3D = cot(a) + cot(8)
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