The solution of the differential equation $(1 + y^2) + (x - e^{\tan^{-1}y}) \frac{dy}{dx} = 0$ is

  • A
    $(x - 2) = ke^{\tan^{-1}y}$
  • B
    $2xe^{\tan^{-1}y} = e^{2\tan^{-1}y} + k$
  • C
    $xe^{\tan^{-1}y} = \tan^{-1}y + k$
  • D
    $xe^{2\tan^{-1}y} = e^{\tan^{-1}y} + k$

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