यदि $f(x) = \text{Sgn}(\text{Sgn}(\text{Sgn}(x)))$ है,तो $\mathop {\lim }\limits_{x \to 0} f(x)$ का मान क्या होगा :-

  • A
    $1$
  • B
    $-1$
  • C
    $0$
  • D
    अस्तित्व में नहीं है

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$\lim _{x \rightarrow \frac{\pi}{4}} \frac{2 \sqrt{2}-(\cos x+\sin x)^3}{1-\sin 2 x}=$

$\lim _{x \rightarrow a} \frac{\sqrt{a+2 x}-\sqrt{3 a}}{\sqrt{x}-\sqrt{a}} = $

यदि $0 < x < y$ है,तो $\mathop {\lim }\limits_{n \to \infty } {({y^n} + {x^n})^{1/n}}$ का मान क्या होगा?

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।

$\mathop {\lim }\limits_{x \to \pi /2} \frac{{{a^{\cot x}} - {a^{\cos x}}}}{{\cot x - \cos x}} = $

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