$\lim _{n \rightarrow \infty} \frac{1}{n} \sum_{r=0}^{2 n-1} \frac{n^{2}}{n^{2}+4 r^{2}}$ ની કિંમત શોધો:

  • A
    $\frac{1}{2} \tan ^{-1}(2)$
  • B
    $\frac{1}{2} \tan ^{-1}(4)$
  • C
    $\tan ^{-1}(4)$
  • D
    $\frac{1}{4} \tan ^{-1}(4)$

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Similar Questions

$\lim _{n \rightarrow \infty} \frac{1}{n^3} \sum_{k=1}^n (k^2 x)$ ની કિંમત શોધો.

ધારો કે $S_n = \sum_{k=1}^n \frac{n}{n^2+kn+k^2}$ અને $T_n = \sum_{k=0}^{n-1} \frac{n}{n^2+kn+k^2}$ જ્યાં $n=1, 2, 3, \ldots$ છે. તો,

$\mathop {\lim }\limits_{n \to \infty } \left( {\frac{{n + 1}}{{{n^2} + {1^2}}} + \frac{{n + 2}}{{{n^2} + {2^2}}} + \frac{{n + 3}}{{{n^2} + {3^2}}} + \dots + \frac{1}{n}} \right) = $

$\lim _{n \rightarrow \infty}\left[\frac{1}{n}+\frac{n^2}{(n+1)^3}+\frac{n^2}{(n+2)^3}+\frac{n^2}{(n+3)^3}+\ldots+\frac{n^2}{(n+4n)^3}\right]=$

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