2. 1-tan? A 3D1-2sin2 A 2. 1+tan² A

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.5: Product-to-sum And Sum-to-product Formulas
Problem 2E
Topic Video
Question

Prove

2.
1-tan? A
3D1-2sin2 A
2.
1+tan² A
Transcribed Image Text:2. 1-tan? A 3D1-2sin2 A 2. 1+tan² A
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