यदि $f(a) = 2, f'(a) = 1, g(a) = -1, g'(a) = 2$ है,तो $\lim_{x \to a} \frac{g(x)f(a) - g(a)f(x)}{x - a}$ का मान ज्ञात कीजिए।

  • A
    $-5$
  • B
    $1/5$
  • C
    $5$
  • D
    कोई नहीं

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$\lim _{x \rightarrow 0} \frac{x^2 2^x-x^2 \sin x-x^2}{3^x+\cos x-3^x \cos x-1}=$

$\mathop {\lim }\limits_{x \to \pi /2} \left[ {x\tan x - \left( {\frac{\pi }{2}} \right)\sec x} \right] = $

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यदि $\mathop {\lim }\limits_{x \to 0} \frac{{\log (3 + x) - \log (3 - x)}}{x} = k$ है,तो $k$ का मान ज्ञात कीजिए।

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