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int sqrt(sec x - 1) dx is equal to...

`int sqrt(sec x - 1) dx` is equal to

A

`2 log abs (cos x/2 + sqrt(cos^2 x/2 - 1/2))` + c

B

`log abs (cos x/2 + sqrt(cos^2 x/2 - 1/2))` + c

C

`-2 log abs (cos x/2 + sqrt(cos^2 x/2 - 1/2))` + c

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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