If \( A_{1} B_{1} \) and \( A_{2} B_{2} \) are two focal chords of ...

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If \( A_{1} B_{1} \) and \( A_{2} B_{2} \) are two focal chords of the
\( \mathrm{P} \) parabola \( y^{2}=4 a x \), then the chords \( A_{1} A_{2} \) and \( B_{1} B_{2} \)

W intersect on:
(1) Directrix
(2) Axis
(3) Tangent at Vertex
(4) None of these
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