$\lim _{n \rightarrow \infty} n\left(\sqrt{n^2+9}-n\right)=$

  • A
    $\frac{9}{4}$
  • B
    $9$
  • C
    $\frac{9}{\sqrt{2}}$
  • D
    $\frac{9}{2}$

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ધારો કે $[.]$ એ મહત્તમ પૂર્ણાંક વિધેય દર્શાવે છે. વિધાન $(A) : \lim_{x \rightarrow \infty} \frac{[x]}{x} = 1$. કારણ $(R) : f(x) = x - 1, g(x) = [x], h(x) = x$ અને $\lim_{x \rightarrow \infty} \frac{f(x)}{x} = \lim_{x \rightarrow \infty} \frac{h(x)}{x} = 1$.

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