If \( X \) is the foot of the directrix on axis of the P parabola \...

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If \( X \) is the foot of the directrix on axis of the
P parabola \( P P \) ' is a double ordinate of the curve and

W \( P X \) meets the curve again in \( Q \). Then \( P^{\prime} Q \) passes through fixed point which is:
(1) Vertex
(2) Focus
(3) Midpoint of vertex and foruce
(4) None of these
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