A pair of tangents are drawn to a unit circle with centre at the origin and these tangents intersect at A enclosing an angle of $60^o$. The area enclosed by these tangents and the arc of the circle is

  • A

    $\frac{2}{{\sqrt 3 }} - \frac{\pi }{6}$

  • B

    $\sqrt 3 - \frac{\pi }{3}$

  • C

    $\frac{\pi }{3}-\frac{{\sqrt 3 }}{6}$

  • D

    $\sqrt 3 \,\left( {1\; - \;\frac{\pi }{6}} \right)$

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