If y sqrt( x^(2) + 1) = log { sqrt( x^(...

If ` y sqrt( x^(2) + 1) = log { sqrt( x^(2) + 1) - x} , "then " ( x^(2) + 1) ( dy)/( dx) + x y + 1 = `

A

0

B

1

C

2

D

None of these

Verified by Experts

The correct Answer is:

A

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