समीकरण $\sin^{-1} x = 2\tan^{-1} x$ का हल समुच्चय क्या है?

  • A
    $\{1, 2\}$
  • B
    $\{-1, 2\}$
  • C
    $\{-1, 1, 0\}$
  • D
    $\{1, \frac{1}{2}, 0\}$

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यदि $\alpha = \cos^{-1}\left(\frac{3}{5}\right)$ और $\beta = \tan^{-1}\left(\frac{1}{3}\right)$,जहाँ $0 < \alpha, \beta < \frac{\pi}{2}$,तो $\alpha - \beta$ का मान ज्ञात कीजिए।

यदि $\sin ^{ - 1}\frac{{2a}}{{1 + {a^2}}} - \cos ^{ - 1}\frac{{1 - {b^2}}}{{1 + {b^2}}} = \tan ^{ - 1}\frac{{2x}}{{1 - {x^2}}}$,तो $x = $

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$\sinh^{-1}\left(\frac{x}{\sqrt{1-x^2}}\right)$ किसके बराबर है?

$\lim _{x \rightarrow 0^{+}} \frac{x \sin ^{-1}\left(\frac{2 x}{1+x^2}\right)}{\cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right) \tan ^{-1}\left(\frac{3 x-x^3}{1-3 x^2}\right)}$ का मान ज्ञात कीजिए।

$3 \tan^{-1} a$ किसके बराबर है?

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