यदि $y = x + \frac{1}{x}$ है,तो निम्नलिखित में से कौन सा सत्य है?

  • A
    $x^2 y' + x y = 0$
  • B
    $x^2 y' + x y + 2 = 0$
  • C
    $x^2 y' - x y + 2 = 0$
  • D
    $x^2 y' + x y - 2 = 0$

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