समीकरण $\sin ^{-1} x+\sin ^{-1} 2 x=\frac{\pi}{3}$ का हल है

  • A
    $-\frac{1}{2} \sqrt{\frac{3}{7}}$
  • B
    $\frac{1}{2} \sqrt{\frac{3}{7}}$
  • C
    $\frac{1}{2} \sqrt{\frac{2}{7}}$
  • D
    $-\frac{1}{3} \sqrt{\frac{2}{7}}$

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