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IF P1P2 and Q1Q2 two focal chords of a...

IF `P_1P_2` and `Q_1Q_2` two focal chords of a parabola `y^2=4ax` at right angles, then

A

the axis of the parabola.

B

the directrix of the parabola

C

the tangent at the vertex of the parabola

D

latus rectum of the parabola

Text Solution

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The correct Answer is:
b
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