Démontre l'identité trigonométrique 2 tan x 1+tan² x = sin 2x.

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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Démontre l'identité trigonométrique
2 tan x
1 + tan² x
= sin 2x.
=
Transcribed Image Text:Démontre l'identité trigonométrique 2 tan x 1 + tan² x = sin 2x. =
TU
n cos COS
7
4π
21
-
sin sin
I
4π
21
Transcribed Image Text:TU n cos COS 7 4π 21 - sin sin I 4π 21
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