सरल कीजिए:
$\frac{a^{1 / 2}+a^{-1 / 2}}{1-a}+\frac{1-a^{-1 / 2}}{1+\sqrt{a}}$

  • A
    $\frac{a}{a-1}$
  • B
    $\frac{a-1}{2}$
  • C
    $\frac{2}{a-1}$
  • D
    $\frac{2}{1-a}$

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