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

  • A
    $1$
  • B
    $3$
  • C
    $2$
  • D
    $4$

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यदि $a > b > 0$ और $\sec^{-1} \left( \frac{a+b}{a-b} \right) = 2 \sin^{-1} x$ है,तो $x$ का मान ज्ञात कीजिए।

यदि $\tan ^{-1} x + \tan ^{-1} y + \tan ^{-1} z = \frac{\pi}{2}$,जहाँ $x, y, z > 0$ और $xy < 1$ है,तो $xy + yz + zx$ का मान ज्ञात कीजिए:

$\cos \left[ {{\cos }^{ - 1}}\left( {\frac{{ - 1}}{7}} \right) + {{\sin }^{ - 1}}\left( {\frac{{ - 1}}{7}} \right) \right] = $

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

यदि $\cos (2\sin ^{ - 1}x) = \frac{1}{9}$ है,तो $x = $

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