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int sec x log (sec x+ tan x)dx=...

`int sec x log (sec x+ tan x)dx=`

A

`(log(sec x + tan x))^(2) + c `

B

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

C

`(1)/(2) (log (sec x + tan))^(2) +c `

D

`(1)/(3) ( log (sec x + tan x))^(2) + c `

Text Solution

Verified by Experts

The correct Answer is:
C
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