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

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

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