What is the parametric equation of a chord?

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Vanaja Sutharsan

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The chord of contact is a chord formed from joining the points of intersection of the parabola and two tangents emanating from an external point T. Both methods are used to derive the equation of the chord of contact.
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The chord of contact is a chord formed from joining the points of intersection of the parabola and two tangents emanating from an external point T. Both methods are used to derive the equation of the chord of contact.
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