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Let the normal at the point P on the par...

Let the normal at the point P on the parabola `y^(2)=6x` pass through the point `(5,-8)`. If the tangent at P to the parabola intersects its directrix at the point Q, the ordinate of the point Q is :

A

`-3`

B

`-(9)/(4)`

C

`-(5)/(2)`

D

`-2`

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