$\lim _{n \rightarrow \infty}\left[\frac{n+3}{n^2+1^2}+\frac{n+6}{n^2+2^2}+\frac{n+9}{n^2+3^2}+\ldots+\frac{2}{n}\right]=$

  • A
    $\frac{\pi}{4}+\frac{3}{2} \ln 2$
  • B
    $\frac{\pi}{2}+\frac{3}{4} \ln 2$
  • C
    $\frac{\pi}{4}-\frac{3}{2} \ln 2$
  • D
    $\frac{\pi}{4}+\frac{1}{2} \ln 2$

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$a \in \mathbb{R}$ (બધી વાસ્તવિક સંખ્યાઓનો ગણ) માટે,$a \neq -1$,જો $\lim_{n \to \infty} \frac{1^a + 2^a + \dots + n^a}{(n+1)^{a-1}[(na+1) + (na+2) + \dots + (na+n)]} = \frac{1}{60}$ હોય,તો $a$ ની કિંમત શોધો:

$\underset{n\to \infty }{\mathop{\lim }}\,\frac{{{1}^{99}}+{{2}^{99}}+{{3}^{99}}+......{{n}^{99}}}{{{n}^{100}}}=$

Difficult
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સરવાળાની મર્યાદા તરીકે $\int_2^3 x^2 dx$ ની કિંમત શોધો.

$\lim _{n \rightarrow \infty} \frac{\pi}{2 n}\left[\sin \frac{\pi}{2 n}+\sin \frac{2 \pi}{2 n}+\sin \frac{3 \pi}{2 n}+\ldots+\sin \frac{\pi}{2}\right]=$

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

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