JEE Main · 2024 · 29 Jan 2024 · Shift 2 · Parabola

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Let be a point on the parabola . If P also lies on the chord of the parabola whose mid point is . Then is equal to ______.

Answer: 192

Solution

The chord of with midpoint has equation :





.

lies on this line: ... (i)

also lies on : ... (ii)

Substituting (i) into (ii):

.

Correspondingly .

— same value for either root.

JEE Main · 2024 · 29 Jan 2024 · Shift 2 · Integer answer

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