$\mathop {\lim }\limits_{n \to \infty } \,\frac{{\sum\limits_{r = 0}^n {{{\tan }^{ - 1}}\left( {1 + r + {r^2}} \right)} }}{n}$ का मान ज्ञात कीजिए।

  • A
    $1$
  • B
    $2$
  • C
    $\frac{\pi}{4}$
  • D
    $\frac{\pi}{2}$

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Similar Questions

$\lim_{x \rightarrow 1} \frac{(x^{2}-1) \sin^{2}(\pi x)}{x^{4}-2x^{3}+2x-1}$ का मान ज्ञात कीजिए।

$\lim _{n \rightarrow \infty} \frac{\left[6^2+12^2+18^2+\ldots+(6 n)^2\right]^2}{[5+10+15+\ldots+5 n]\left[2^3+4^3+6^3+\ldots+(2 n)^3\right]} =$

$\lim _{x}$ ${\rightarrow 1} \frac{(1-x)(1-x^2) \cdots (1-x^{2n})}{\{(1-x)(1-x^2) \cdots (1-x^n)\}^2} = \dots, \forall n \in N$

यदि $\lim_{x}$ ${\rightarrow 0} \left\{ \frac{1}{x^{8}} \left( 1 - \cos \frac{x^{2}}{2} - \cos \frac{x^{2}}{4} + \cos \frac{x^{2}}{2} \cos \frac{x^{2}}{4} \right) \right\} = 2^{-k}$ है,तो $k$ का मान ज्ञात कीजिए।

यदि $f(x)$,$97 f(x) + m f\left(\frac{1}{x}\right) = 0$ को संतुष्ट करता है,जहाँ $f(x) = \lim_{n \rightarrow \infty} n(x^{1/n} - 1)$ और $x > 0$ है,तो $m$ का मान ज्ञात कीजिए।

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