$\mathop {\lim }\limits_{x \to 0} \frac{{{e^{\alpha x}} - {e^{\beta x}}}}{x} = $

  • A
    $\alpha + \beta $
  • B
    $\frac{1}{\alpha } + \beta $
  • C
    ${\alpha ^2} - {\beta ^2}$
  • D
    $\alpha - \beta $

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$\mathop {\lim }\limits_{x \to 0} \frac{1}{x}\left[ {{{\tan }^{ - 1}}\left( {\frac{{x + 1}}{{2x + 1}}} \right) - \frac{\pi }{4}} \right]$ का मान है

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।

मान लीजिए $[x]$ उस सबसे बड़े पूर्णांक को दर्शाता है जो $x$ से अधिक नहीं है। यदि $l_1 = \lim_{x \rightarrow 2^{+}} (x^2 + [x])$,$l_2 = \lim_{x \rightarrow 3^{-}} (2x - [x])$ और $l_3 = \lim_{x \rightarrow \frac{\pi}{2}} \left( \frac{\cos x}{x - \frac{\pi}{2}} \right)$ है,तो:

$\mathop {\lim }\limits_{x \to 2} \frac{|x - 2|}{x - 2} = $

माना सभी $x > 0$ के लिए, $f(x) = \lim_{n \rightarrow \infty} n(x^{1/n} - 1)$, तो

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