Ptz 1. sin x secx = tanx 2. cos² x-sin2x-1-2 sin²x Pt₂

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 22RE
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Question
Verify the identity
Pt.
1. sinx secx = tanx
2. cos² x-sin2x-1-2 sin²x
Pt2
Transcribed Image Text:Pt. 1. sinx secx = tanx 2. cos² x-sin2x-1-2 sin²x Pt2
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