यदि $\alpha = \lim_{x \rightarrow 0} \frac{x \cdot 2^x - x}{1 - \cos x}$ और $\beta = \lim_{x \rightarrow 0} \frac{x \cdot 2^x - x}{\sqrt{1 + x^2} - \sqrt{1 - x^2}}$ है,तो

  • A
    $\alpha = 5 \beta$
  • B
    $\alpha = 2 \beta$
  • C
    $\beta = 2 \alpha^2$
  • D
    $\beta = \frac{1}{6}$

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