यदि $\sin ^{-1} x + \sin ^{-1} y = \frac{\pi}{2}$ है,तो $x^{2}$ का मान क्या होगा?

  • A
    $1 - y^{2}$
  • B
    $y^{2}$
  • C
    $0$
  • D
    $\sqrt{1 - y}$

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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 = $

$3 \tan^{-1}(1/2)$ का मान किसके बराबर है?

यदि $\alpha > \beta > \gamma > 0$ है,तो व्यंजक $\cot ^{-1}\left\{\beta+\frac{(1+\beta^2)}{(\alpha-\beta)}\right\}+\cot ^{-1}\left\{\gamma+\frac{(1+\gamma^2)}{(\beta-\gamma)}\right\}+\cot ^{-1}\left\{\alpha+\frac{(1+\alpha^2)}{(\gamma-\alpha)}\right\}$ का मान क्या होगा?

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$\tan ^{-1}\left\{\frac{\sqrt{1+x}-\sqrt{1-x}}{\sqrt{1+x}+\sqrt{1-x}}\right\}+\frac{1}{2} \cos ^{-1} x$ का मान है

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