यदि $2 \cos \left(2 \tan ^{-1} x\right)=1$ है,तो $x=$ . . . . . .

  • A
    $1-\sqrt{3}$
  • B
    $\frac{1}{\sqrt{3}}$
  • C
    $1-\frac{1}{\sqrt{3}}$
  • D
    $\sqrt{3}$

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यदि $e^{\left(\sinh ^{-1} 2+\cosh ^{-1} \sqrt{6}\right)}=(a+(b+\sqrt{c}) \sqrt{a}+b \sqrt{c})$ है, तो $a+b+c=$

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

मान ज्ञात कीजिए: $\cos \left(\sec ^{-1} 2\right)+\tan \left(\cot ^{-1} \sqrt{3}\right)+\sin\left(\operatorname{cosec}^{-1} \frac{2}{\sqrt{3}}\right) = $ ?

मान ज्ञात कीजिए: $\cos^{-1} \left( \cos \frac{7\pi}{6} \right)$

$\tan ^{-1}\left(\tan \frac{7 \pi}{6}\right)$ का मान है

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