Categories > conic-section > Parabola > If the normals at two points P and Q of a parabola ${{y}^{2}}=4ax$ intersect at a third point R on the curve, then the product of ordinates of P and Q is

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Question: If the normals at two points P and Q of a parabola ${{y}^{2}}=4ax$ intersect at a third point R on the curve, then the product of ordinates of P and Q is


1) $4{{a}^{2}}$
2) $2{{a}^{2}}$
3) $-4{{a}^{2}}$
4) $8{{a}^{2}}$
Solution: Explanation: No Explanation
Parabola

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