Verify the identity sin t - cos 2t = (2 sin t - 1)(sin t + 1).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 19RE
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Verify the identity sin t - cos 2t = (2 sin t - 1)(sin t + 1).

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