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int (1)/(sqrt(x^(2)-4x-5))dx=...

`int (1)/(sqrt(x^(2)-4x-5))dx=`

A

`Cosh^(-1)((x+2)/(3))+c`

B

`Sinh^(-1)((x-2)/(3))+c`

C

`Cosh^(-1)((x-2)/(3))+c`

D

none

Text Solution

Verified by Experts

The correct Answer is:
C
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