int (log(x+sqrt(1+x^2))/sqrt(1+x^2))...

`int (log(x+sqrt(1+x^2))/sqrt(1+x^2))`

A

`1/2 [ log (x +sqrt1+x^2)]^2 +c`

B

`log (x + sqrt(1+x^2))^2+c`

C

`log (x + sqrt(x )+ sqrt(1+x^2))+C`

D

None of these

Verified by Experts

The correct Answer is:

A

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