यदि $\sin ^{-1} x+\sin ^{-1} y=\frac{\pi}{3}$ और $\cot ^{-1}\left(\frac{1}{x}\right)-\cot ^{-1}\left(\frac{1}{y}\right)=0$ है,तो $2 x^2+y^2-x y=$

  • A
    $\frac{1}{4}$
  • B
    $1$
  • C
    $\frac{1}{2}$
  • D
    $0$

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Similar Questions

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।

$\sin ^{-1}(\cos(\sin ^{-1} x)) + \cos ^{-1}(\sin(\cos^{-1} x)) = \text{ . . . . . . }$

यदि $\frac{\sin ^{-1} x}{a}=\frac{\cos ^{-1} x}{b}=\frac{\tan ^{-1} y}{c}$ और $0 < x < 1$ है,तो $\cos \left(\frac{\pi c}{a + b}\right)$ का मान ज्ञात कीजिए।

$\sin ^{-1}\left(\sin \frac{2 \pi}{3}\right)+\cos ^{-1}\left(\cos \frac{7 \pi}{6}\right)+\tan ^{-1}\left(\tan \frac{3 \pi}{4}\right)$ का मान ज्ञात कीजिए।

$\sin \left( {2{{\tan }^{ - 1}}\left( {\frac{1}{3}} \right)} \right) + \cos ({\tan ^{ - 1}}(2\sqrt 2 ))$ का मान ज्ञात कीजिए।

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