$\lim _{n}$ ${\rightarrow \infty} \left( \frac{\sqrt{n}}{\sqrt{n^{3}}}+\frac{\sqrt{n}}{\sqrt{(n+4)^{3}}}+\frac{\sqrt{n}}{\sqrt{(n+8)^{3}}}+\cdots +\frac{\sqrt{n}}{\sqrt{[n+4(n-1)]^{3}}} \right)$ का मान ज्ञात कीजिए।

  • A
    $\frac{5-\sqrt{5}}{10}$
  • B
    $\frac{5+\sqrt{5}}{10}$
  • C
    $\frac{2+\sqrt{3}}{2}$
  • D
    $\frac{2-\sqrt{3}}{2}$

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