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If y=(x+sqrt(1+x^(2)))^(n), then show th...

If `y=(x+sqrt(1+x^(2)))^(n)`, then show that `(1+x^(2))(d^(2)y)/(dx^(2))+x(dy)/(dx)=n^(2)y`.

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The correct Answer is:
`n^(2)y`
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