Prove that 1-cos2x+sin2x 1+cos2x+sin2x = tan x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 84E
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3. Prove that
1-cos2x+sin2x
1+cos2x+sin2x
= tan x
Transcribed Image Text:3. Prove that 1-cos2x+sin2x 1+cos2x+sin2x = tan x
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