$\mathop {\lim }\limits_{x \to 0} \frac{{{{27}^x} - {9^x} - {3^x} + 1}}{{\sqrt 5 - \sqrt {4 + \cos x} }}$ का मान है

  • A
    $\sqrt 5 (\log 3)^2$
  • B
    $8\sqrt 5 \log 3$
  • C
    $16\sqrt 5 \log 3$
  • D
    $8\sqrt 5 (\log 3)^2$

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दिया गया है कि $f'(2) = 6$ और $f'(1) = 4$,तो $\mathop {\lim }\limits_{h \to 0} \frac{{f(2h + 2 + {h^2}) - f(2)}}{{f(h - {h^2} + 1) - f(1)}} = $

$\mathop {\lim }\limits_{x \to 0} \,\frac{{{e^x} - x - 1}}{{{x^2}}}$ का मान है

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