$\tan \left[ \frac{1}{2} \cos^{-1} \left( \frac{\sqrt{5}}{3} \right) \right] = $

  • A
    $\frac{3 - \sqrt{5}}{2}$
  • B
    $\frac{3 + \sqrt{5}}{2}$
  • C
    $\frac{2}{3 - \sqrt{5}}$
  • D
    આમાંથી કોઈ નહીં

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$\frac{\tan ^{-1}(\sqrt{3})-\sec ^{-1}(-2)}{\operatorname{cosec}^{-1}(-\sqrt{2})+\cos ^{-1}\left(-\frac{1}{2}\right)}=$

$\cos ^{-1}\left(\frac{1}{2}\right)+2 \sin ^{-1}\left(\frac{1}{2}\right)$ ની કિંમત શોધો.

$2 \tanh^{-1} \frac{1}{2}$ ની કિંમત શોધો.

જો $\tan ^{-1}\left(\frac{1-x}{1+x}\right)=\frac{1}{2} \tan ^{-1} x$ હોય,તો $x$ ની કિંમત શોધો.

$\tan ^{-1}\left[2 \cos \left(2 \sin ^{-1} \frac{1}{2}\right)\right]$ ની કિંમત શોધો.

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