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int (1)/(cos x (1 + cos x))dx =...

int (1)/(cos x (1 + cos x))dx =`

A

`log (sec x + tan x) + "2 tan" (x)/(2) + c`

B

`log (sec x + tan x) - "2 tan" (x)/(2) + c`

C

`log (sec x + tan x) + "tan" (x)/(2) + c`

D

`log (sec x + tan x) - "tan" (x)/(2) + c`

लिखित उत्तर

Verified by Experts

The correct Answer is:
D
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