यदि $(a+b x) e^{\frac{y}{x}}=x$ है, तो $\frac{d^2 y}{d x^2}=$

  • A
    $\frac{1}{x^3}\left(x y^{\prime}+y\right)^2$
  • B
    $\frac{1}{x^3}\left(x y^{\prime}+y^2\right)$
  • C
    $\frac{1}{x^3}\left(x y^{\prime}-y\right)$
  • D
    $\frac{1}{x^3}\left(x y^{\prime}-y\right)^2$

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