$\int_{\log _e 2}^x \frac{d t}{\sqrt{e^t-1}}=\frac{\pi}{6} \Rightarrow x=$

  • A
    $2 \cdot \log _e 2$
  • B
    $3 \cdot \log _e 2$
  • C
    $4 \cdot \log _e 2$
  • D
    $8 \cdot \log _e 2$

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