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int (1- tan x//2)/(1+ tan x//2)dx=...

`int (1- tan x//2)/(1+ tan x//2)dx=`

A

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

B

`2 log | cos ""(x)/(2)| + c`

C

`2 log | sec ((pi)/(4) - (x)/(2))| + c `

D

`2log |cos ((pi)/(4) - (x)/(2)| + c `

Text Solution

Verified by Experts

The correct Answer is:
D
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