$x$ का वह मान जो $\sin \left(\cot ^{-1} x\right)=\cos \left(\tan ^{-1}(1+x)\right)$ को संतुष्ट करता है, है

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

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यदि $(\cos ^{-1} x)^2-(\sin ^{-1} x)^2 > 0$ है,तो

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

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