यदि $f^{\prime \prime}(0)=k, k \neq 0,$ है, तो $\lim _{x \rightarrow 0} \frac{2 f(x)-3 f(2 x)+f(4 x)}{x^{2}}$ का मान क्या है?

  • A
    $k$
  • B
    $2 k$
  • C
    $3 k$
  • D
    $4 k$

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यदि $f(1) = 1$ और $f'(1) = 4$ है,तो $\mathop {\lim }\limits_{x \to 1} \frac{{\sqrt {f(x)} - 1}}{{\sqrt x - 1}}$ का मान ज्ञात कीजिए।

$\mathop {\lim }\limits_{x \to 0} \frac{{\cos ax - \cos bx}}{{{x^2}}} = $

यदि $f(9) = 9$ और $f'(9) = 4$ है,तो $\mathop {\lim }\limits_{x \to 9} \frac{{\sqrt {f(x)} - 3}}{{\sqrt x - 3}} = $

$\lim \limits_{x}$ ${\rightarrow a} \frac{(a+2x)^{1/3}-(3x)^{1/3}}{(3a+x)^{1/3}-(4x)^{1/3}} \text{ जहाँ } a \neq 0 \text{ का मान ज्ञात कीजिए।}$

यदि $f(4) = g(4) = 2$,$f'(4) = 9$,और $g'(4) = 6$ है,तो $\mathop {\text{Limit}}\limits_{x \to 4} \frac{\sqrt{f(x)} - \sqrt{g(x)}}{\sqrt{x} - 2}$ का मान ज्ञात कीजिए:

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