SOLUTION: Prove the identity: 2 tan x ___________ __ = sin 2x 1 + tan^2 x

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Question 640253: Prove the identity:
2 tan x
______________ = sin 2x
1 + tan^2 x
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Prove the identity:
2 tan x
______________ = sin 2x
1 + tan^2 x
=======================
Prove the identity:
2 tan x
______________ = sin 2x
sec^2 x
-----------------
2tan(x) = sin(2x)*cos^2(x)
2tan(x) = 2sin(x)cos^3(x)
Not an identity.