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If OAB is an equilateral triangle inscribed in the parabola `y^(2)=4ax` with O as the vertex, then the length of the side of the `DeltaOAB` is

A

`8a sqrt(3)`

B

`4a sqrt(3)`

C

`2a sqrt(3)`

D

`a sqrt(3)`

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The correct Answer is:
A
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