1.

If (x1,y1)(x2,y2) are the extremities of a focal chord of the parabola y2=16x then 4x1x2+y1y2=

Answer»

If (x1,y1)(x2,y2) are the extremities of a focal chord of the parabola y2=16x then 4x1x2+y1y2=




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