જો $\sin ^{-1} x+\sin ^{-1} y=\frac{\pi}{3}$ અને $\cot ^{-1}\left(\frac{1}{x}\right)-\cot ^{-1}\left(\frac{1}{y}\right)=0$ હોય, તો $2 x^2+y^2-x y=$

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

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Similar Questions

$\sin ^{-1} \frac{\sqrt{3}}{2} + \sin ^{-1} \sqrt{\frac{2}{3}} = $

જો $\tan ^{-1} x + \tan ^{-1} y + \tan ^{-1} z = \frac{\pi}{2}$,જ્યાં $x, y, z > 0$ અને $xy < 1$ હોય,તો $xy + yz + zx$ ની કિંમત શોધો:

જો $3 \sin ^{-1}\left(\frac{2 x}{1+x^2}\right)-4 \cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right)+2 \tan ^{-1}\left(\frac{2 x}{1-x^2}\right)=\frac{\pi}{3}$ હોય,તો $x$ ની કિંમત શોધો.

જો $(\tan ^{-1} x)^2+(\cot ^{-1} x)^2=\frac{5 \pi^2}{8}$ હોય,તો $x^2+1=$

$\sin \left[ 3 \sin^{-1} \left( \frac{1}{5} \right) \right] = $

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