$\mathop {\lim }\limits_{x \to a} \frac{{\sqrt {a + 2x} - \sqrt {3x} }}{{\sqrt {3a + x} - 2\sqrt x }} = \dots$ (जहाँ $a \ne 0$)

  • A
    $\frac{1}{{\sqrt 3 }}$
  • B
    $\frac{2}{{3\sqrt 3 }}$
  • C
    $\frac{2}{{\sqrt 3 }}$
  • D
    $\frac{2}{3}$

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$\mathop {\lim }\limits_{n \to \infty } \left[ {\frac{1}{{1 - {n^2}}} + \frac{2}{{1 - {n^2}}} + \frac{3}{{1 - {n^2}}} + \dots + \frac{n}{{1 - {n^2}}}} \right] =$

$\mathop {\lim }\limits_{\theta \to \pi /6} \frac{{\cot^2 \theta - 3}}{{\csc \theta - 2}} = $

$\mathop {\lim }\limits_{x \to 0} \frac{{\sqrt {\frac{1}{2}(1 - \cos 2x)} }}{x} = $

$\lim _{x \rightarrow \infty} \frac{3 x+4 \cos ^2 x}{\sqrt{x^2-5 \sin ^2 x}} = $

यदि $[x]$ उस महत्तम पूर्णांक को दर्शाता है जो $x$ से कम या उसके बराबर है,तो $\mathop {\lim }\limits_{x \to 1} (1 - x + [x - 1] + [1 - x])$ का मान क्या है?

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