3. Which expression is equal to 02 O O O O 1 -1 -2 sinx-cos X sin² x-cos²x using identities?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 18T
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3. Which expression is equal to
02
O 1
O -1
O -2
sinx-cos4
sin² x-cos²x
using identities?
Transcribed Image Text:3. Which expression is equal to 02 O 1 O -1 O -2 sinx-cos4 sin² x-cos²x using identities?
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