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Let N be the foot of perpendicular to th...

Let `N` be the foot of perpendicular to the x-axis from point `P` on the parabola `y^2=4a xdot` A straight line is drawn parallel to the axis which bisects `P N` and cuts the curve at `Q ;` if `N O` meets the tangent at the vertex at a point then prove that `A T=2/3P Ndot`

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Let N be the foot of perpendicular to the x- axis from point P on the parabola y^(2)=4ax. A straight line is drawn parallel to the axis which bisects PN and cuts the curve at Q; if NO meets the tangent at the vertex at a point then prove that AT=(2)/(3)PN.

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