$\lim _{x \rightarrow 1} \frac{2^{2 x-2}-2^x+1}{\sin ^2(x-1)}=$

  • A
    $\frac{1}{2}(\log 2)^2$
  • B
    $(\log 2)^2$
  • C
    $2 \log 2$
  • D
    $2(\log 2)^2$

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$\lim _{x \rightarrow 1} \left( \frac{x+x^2+x^3+\ldots+x^n-n}{x-1} \right) = $

$\lim _{x \rightarrow 0} \frac{\cos (\sin x)-\cos x}{x^{4}}$ का मान ज्ञात कीजिए।

$\mathop {\lim }\limits_{n \to \infty } \frac{{[{1^2}x + {1^2}] + [{2^2}x + {2^2}] + [{3^2}x + {3^2}] + \dots + [{n^2}x + {n^2}]}}{{{n^3}}}$ का मान ज्ञात कीजिए :- (जहाँ $[.]$ महत्तम पूर्णांक फलन है)

यदि $a > 0$ है,$[\cdot]$ महत्तम पूर्णांक फलन को दर्शाता है,$\lim _{x \rightarrow a^{-}}\left(\frac{|x|^3}{a}-\left[\frac{x}{a}\right]^3\right)=k$,और $\lim _{x \rightarrow a^{+}}\left(\frac{|x|^3}{a}-\left[\frac{x}{a}\right]^3\right)=l$,तो:

यदि $a = \lim_{x \rightarrow 0} \frac{\sqrt{1+\sqrt{1+x^4}}-\sqrt{2}}{x^4}$ और $b = \lim_{x \rightarrow 0} \frac{\sin^2 x}{\sqrt{2}-\sqrt{1+\cos x}}$ है,तो $ab^3$ का मान ज्ञात कीजिए।

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