$\lim _{n \rightarrow \infty} \frac{1}{n} \sum_{r=1}^{2 n} \frac{r}{\sqrt{n^2+r^2}}=$

  • A
    $\sqrt{5}-1$
  • B
    $\sqrt{5}+1$
  • C
    $\sqrt{2}-1$
  • D
    $\sqrt{2}+1$

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Similar Questions

$\lim _{n \rightarrow \infty} \frac{1}{n} \sum_{j=1}^{n} \frac{(2 j-1)+8 n}{(2 j-1)+4 n}$ નું મૂલ્ય શોધો.

આપેલ છે કે $\lim _{n \rightarrow \infty} \frac{1}{n} \sum_{r=1}^{n p} f\left(\frac{r}{n}\right)=\int_0^p f(x) d x$. જો $f: R \rightarrow R$ એ $f(x)=x^2+2$ દ્વારા વ્યાખ્યાયિત હોય, તો $\lim _{n \rightarrow \infty} \frac{3}{n}\left[f\left(\frac{7}{n}\right)+f\left(\frac{14}{n}\right)+f\left(\frac{21}{n}\right)+\ldots+f(7)\right]=$

$\mathop {Lim}\limits_{n \to \infty } \,\,\sum\limits_{k = 1}^n {\frac{n}{{{n^2} + {k^2}{x^2}}}} $,$x > 0$ ની કિંમત શોધો.

નીચેના નિશ્ચિત સંકલનનું સરવાળાના લક્ષ તરીકે મૂલ્ય શોધો: $\int_{-1}^{1} e^{x} dx$

$\lim _{n \rightarrow \infty}\left\{\frac{1}{\sqrt{4 n^2-1^2}}+\frac{1}{\sqrt{4 n^2-2^2}}+\frac{1}{\sqrt{4 n^2-3^2}}+\dots+\frac{1}{\sqrt{4 n^2-n^2}}\right\}=$

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