3. Prove the following identity: tan X 1 + tan x = sin x sin x + cos X

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 25E
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3. Prove the following identity:
tan x
1 + tan x
=
sin X
sin x + cos X
Transcribed Image Text:3. Prove the following identity: tan x 1 + tan x = sin X sin x + cos X
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