cove the identity 2 tan 0 tan²0 + 1 = = sin(20).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 79E
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Prove the identity
2 tan 0
tan²0 + 1
= sin(20).
=
Transcribed Image Text:Prove the identity 2 tan 0 tan²0 + 1 = sin(20). =
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