If y= sin (mlog (x+ sqrt( 1+x^(2)))),th...

If ` y= sin (mlog (x+ sqrt( 1+x^(2)))),then (1+x^(2) ) (d^(2)y)/(dx^(2))+x(dy)/(dx) =`

A

` -m^(2) y `

B

` m^(2) y `

C

`-my `

D

`my `

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The correct Answer is:

A

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