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∫(1 - cos 2x)/(1 + cos 2x)dx = ? A. tan x + x + C B. tan x – x + C C. - tan x + x + C

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in Indefinite Integral by (30.3k points)
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∫(1 - cos 2x)/(1 + cos 2x)dx = ?

A. tan x + x + C

B. tan x – x + C

C. - tan x + x + C

D. - tan x – x + C

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1 Answer

+1 vote
by (29.9k points)
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Best answer

Given:

= ∫(tan x )2

= ∫((sec x )2 -1) dx

= tan x - x + c

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