यदि ${\sin ^{ - 1}}\left( {\frac{{2a}}{{1 + {a^2}}}} \right) + {\sin ^{ - 1}}\left( {\frac{{2b}}{{1 + {b^2}}}} \right) = 2{\tan ^{ - 1}}x,$ तो $x = $

  • A
    $\frac{{a - b}}{{1 + ab}}$
  • B
    $\frac{b}{{1 + ab}}$
  • C
    $\frac{b}{{1 - ab}}$
  • D
    $\frac{{a + b}}{{1 - ab}}$

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Similar Questions

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

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।

$\operatorname{Sin}^{-1}(-\cos 2) + \operatorname{Cos}^{-1}(\sin 3) + \operatorname{Tan}^{-1}(\cot 5) = $

$\sin \left(\cos ^{-1}\left(-\frac{1}{3}\right)-\sin ^{-1}\left(\frac{1}{3}\right)\right)$ का मान क्या है?

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

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