Question

perpendiculars are drawn from two points on the axis of the parbola y^2=4ax to a tangent to the parabola. if the points are situated at a distance d from the focus and the lengths of the perpendicualrs are p1 and p2 . then p1^2-p2^2:

a)2ad

b)4ad

c)a^2+d^2

d)a^2-d^2

Answer 1

I think B or D is correct