$\tan^{-1}(\sqrt{3}) + \sec^{-1}(-2) - \sin^{-1}(-\frac{1}{2})$ का मान है

  • A
    $\frac{5\pi}{6}$
  • B
    $\frac{2\pi}{3}$
  • C
    $\frac{7\pi}{6}$
  • D
    $\frac{4\pi}{3}$

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