$\lim _{x \rightarrow \infty}\left(\frac{3 x-1}{3 x+1}\right)^{4 x}$ का मान ज्ञात कीजिए।

  • A
    $1$
  • B
    $0$
  • C
    $e^{-8/3}$
  • D
    $e^{-4/9}$

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यदि $L = \lim_{x^2 \to a} \frac{b - \cos(x^2 - a)}{(x^2 - a) \sin(c(x^2 - a))}$ एक शून्येतर परिमित मान $(a > 0)$ है,तो:

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