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

  • A
    $\frac{3}{8}$
  • B
    $\frac{15}{32}$
  • C
    $\frac{12}{25}$
  • D
    $\frac{35}{72}$

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Similar Questions

ધારો કે $S = \frac{2}{1} {}^{n}C_{0} + \frac{2^{2}}{2} {}^{n}C_{1} + \frac{2^{3}}{3} {}^{n}C_{2} + \ldots + \frac{2^{n+1}}{n+1} {}^{n}C_{n}$ છે. તો, $S$ ની કિંમત શું થાય?

જો $a = \lim_{n \to \infty} \sum_{k=1}^{n} \frac{2n}{n^2+k^2}$ અને $f(x) = \sqrt{\frac{1-\cos x}{1+\cos x}}$,$x \in (0, 1)$,હોય તો:

$n$ ની પૂરતી મોટી કિંમત માટે,પ્રથમ $n$ ધન પૂર્ણાંકોના વર્ગમૂળનો સરવાળો,એટલે કે $\sqrt{1} + \sqrt{2} + \sqrt{3} + \dots + \sqrt{n}$,આશરે કોના બરાબર થાય?

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

$\lim _{n \rightarrow \infty} \frac{1}{n} \left\{ \sec ^{2} \frac{\pi}{4 n} + \sec ^{2} \frac{2 \pi}{4 n} + \ldots + \sec ^{2} \frac{n \pi}{4 n} \right\}$ ની કિંમત શોધો.

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