$\operatorname{Tanh}^{-1}\left(\frac{1}{3}\right)+\operatorname{Coth}^{-1}(3)=$

  • A
    $\operatorname{Sech}^{-1}\left(\frac{1}{3}\right)$
  • B
    $\operatorname{Cosech}^{-1}\left(\frac{1}{3}\right)$
  • C
    $\operatorname{Cosh}^{-1}\left(\frac{4}{3}\right)$
  • D
    $\operatorname{Sinh}^{-1}\left(\frac{3}{4}\right)$

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