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A pair of tangents are drawn to a unit circle with centre at the origin and these tangents intersect at the point `P` enclosing an angle of `60^0` . The area enclosed by the tangents and the arc of the circle is, `2/(sqrt(3))-pi/6` (b) `sqrt(3)-pi/3` `pi/3-sqrt(3)` (d) `sqrt(3)(1-pi/6)`

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