यदि $y = e^{\tan^{-1}x}$ है,तो $(1 + x^2)\frac{d^2y}{dx^2} = $

  • A
    $(1 - 2x)\frac{dy}{dx}$
  • B
    $-2x\frac{dy}{dx}$
  • C
    $-x\frac{dy}{dx}$
  • D
    $0$

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