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(d)/(dx ) log (x + sqrt(x ^(2) +1 ))}=...

`(d)/(dx ) ` log ` (x + sqrt(x ^(2) +1 ))}=`

A

`(1)/(1+ x ^(2))`

B

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

C

` (-1)/( sqrt(x + x ^(2))`

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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