यदि $|x| < 1$ है,तो $\lim_{n \to \infty} \{(1 + x)(1 + x^2)(1 + x^4) \dots (1 + x^{2^n})\}$ का मान ज्ञात कीजिए।

  • A
    $\frac{1}{x - 1}$
  • B
    $\frac{1}{1 - x}$
  • C
    $1$
  • D
    $x - 1$

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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

$\lim _{x \rightarrow 0} \frac{2^{2 x}-2^{x+1}+2-\cos 2 x}{x^2} = $

$\lim _{n \rightarrow \infty} \frac{n !}{(n+1) !-n !} = $

$\mathop {\lim }\limits_{x \to 1} \frac{{x + {x^2} + ...... + {x^n} - n}}{{x - 1}}$ का मान ज्ञात कीजिए।

वह द्विघात समीकरण जिसके मूल $l$ और $m$ हैं,जहाँ
$\begin{aligned}
& l=\lim _{\theta \rightarrow 0}\left(\frac{3 \sin \theta-4 \sin ^2 \theta}{\theta}\right), \\
& m=\lim _{\theta \rightarrow 0} \frac{2 \tan \theta}{\theta\left(1-\tan ^2 \theta\right)}, \text{ है}
\end{aligned}$

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