यदि $\sin ^{-1}\left(x-\frac{x^{2}}{2}+\frac{x^{3}}{4}-\frac{x^{4}}{8}+\ldots\right)=\frac{\pi}{6},$ जहाँ $|x| < 2$ है, तो $x$ का मान ज्ञात कीजिए।

  • A
    $\frac{2}{3}$
  • B
    $\frac{3}{2}$
  • C
    $-\frac{2}{3}$
  • D
    $-\frac{3}{2}$

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यदि $\operatorname{Sinh}^{-1}(2)+\operatorname{Sinh}^{-1}(3)=\alpha$ है,तो $\sinh \alpha=$

$\tan ^{-1} 2 x+\tan ^{-1} 3 x=\frac{\pi}{4}$ को हल करें।

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$\coth^{-1}(2) + \operatorname{cosech}^{-1}(-2\sqrt{2}) = $

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