यदि $2 \operatorname{Tanh}^{-1} x = \operatorname{Sinh}^{-1}\left(\frac{4}{3}\right)$ है, तो $\operatorname{Cosh}^{-1}\left(\frac{1}{x}\right) = $

  • A
    $\log (\sqrt{2}+1)$
  • B
    $\log (\sqrt{2}-1)$
  • C
    $\log (2+\sqrt{3})$
  • D
    $\log (2-\sqrt{3})$

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Similar Questions

$\cos ^{-1}\left[\frac{1}{\sqrt{2}}\left(\cos \frac{9 \pi}{10}-\sin \frac{9 \pi}{10}\right)\right]$ का मुख्य मान ज्ञात कीजिए।

यदि $3 \sin ^{-1}\left(\frac{2 x}{1+x^2}\right)-4 \cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right)+2 \tan ^{-1}\left(\frac{2 x}{1-x^2}\right)=\frac{\pi}{3}$ है,तो $x$ का मान ज्ञात कीजिए।

यदि $\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1$ है,तो $x$ का मान ज्ञात कीजिए।

सिद्ध कीजिए कि $\sin ^{-1}(2 x \sqrt{1-x^{2}})=2 \cos ^{-1} x$,जहाँ $\frac{1}{\sqrt{2}} \leq x \leq 1$.

$\sin \left[ 3 \sin^{-1} \left( \frac{1}{5} \right) \right] = $

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