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int(1)/(cos x - sin x )dx is equal to...

`int(1)/(cos x - sin x )dx` is equal to

A

`1/(sqrt2) "log tan" (x/2 - pi/8)`

B

`1/(sqrt2) "log cot " x/2`

C

`1/(sqrt2) "log tan" (x/2 - (3pi)/8)`

D

`1/(sqrt2) "log tan" (x/2 + (3pi)/8)`

Text Solution

Verified by Experts

The correct Answer is:
D
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