$\mathop {\lim }\limits_{x \to \infty } \frac{{{{\cot }^{ - 1}}\left( {\sqrt {x + 1} - \sqrt x } \right)}}{{{{\sec }^{ - 1}}\left\{ {{{\left( {\frac{{2x + 1}}{{x - 1}}} \right)}^x}} \right\}}}$ का मान ज्ञात कीजिए।

  • A
    $1$
  • B
    $0$
  • C
    $\pi / 2$
  • D
    अस्तित्वहीन

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$\lim_{n \to \infty} \frac{(n + 2)! + (n + 1)!}{(n + 2)! - (n + 1)!}$ का मान है

यदि $f(x) = \begin{cases} \frac{\sin[x]}{[x]}, & [x] \neq 0 \\ 0, & [x] = 0 \end{cases}$ जहाँ $[x]$,$x$ से कम या उसके बराबर महत्तम पूर्णांक को दर्शाता है,तो $\lim_{x \to 0^-} f(x)$ है:

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