$0 < x \leq \pi$ के लिए, $\sinh ^{-1}(\cot x)$ का मान क्या होगा?

  • A
    $\log \left(\cot \frac{x}{2}\right)$
  • B
    $\log \left(\tan \frac{x}{2}\right)$
  • C
    $\log (1+\cot x)$
  • D
    $\log (1+\tan x)$

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