JEE Advance - Mathematics (1998 - No. 34)
Let $${A_0}{A_1}{A_2}{A_3}{A_4}{A_5}$$ be a regular hexagon inscribed in a circle of unit radius. Then the product of the lengths of the line segments $${A_0}{A_1},{A_0}{A_2}$$ and $${A_0}{A_4}$$ is
$${3 \over 4}$$
$$3\sqrt 3 $$
$$3$$
$${{3\sqrt 3 } \over 2}$$