$\lim _{x \rightarrow 0}\left[\tan \left(x+\frac{\pi}{4}\right)\right]^{1 / x}$ का मान ज्ञात कीजिए।

  • A
    $e^2$
  • B
    $e$
  • C
    $e^{3 / 2}$
  • D
    $e^{-1}$

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$\mathop {\lim }\limits_{x \to \infty } {\left( {\frac{{x + 3}}{{x + 1}}} \right)^{x + 1}} = $

$\lim _{x \rightarrow 1} \frac{x+x^2+\ldots+x^n-n}{x-1}$ का मान है

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