જો $\theta = \frac{\pi}{12}$ અને $x = \log \left(\cot \left(\frac{\pi}{4} + \theta\right)\right)$ હોય,તો $\cosh x =$

  • A
    $\frac{2}{\sqrt{3}}$
  • B
    $\frac{-2}{\sqrt{3}}$
  • C
    $\frac{\sqrt{3}}{2}$
  • D
    $\frac{-\sqrt{3}}{2}$

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