A is a point on the parabola `x^2 = 4ay`. The normal at A cuts the parabola again at B. If AB subtends a right angle at the vertex of the parabola, find the slope of AB.

A is a point on the parabola y^(2)=4ax. The normal at A cuts the parabola again at point B. If AB subtends a right a agle at the vertex of the parabola,find the slope of AB.

A is a point on the parabola y^2=4a x . The normal at A cuts the parabola again at point Bdot If A B subtends a right angle at the vertex of the parabola, find the slope of A Bdot

A is a point on the parabola y^2=4a x . The normal at A cuts the parabola again at point Bdot If A B subtends a right angle at the vertex of the parabola, find the slope of A Bdot

A is a point on the parabola y^2=4a x . The normal at A cuts the parabola again at point Bdot If A B subtends a right angle at the vertex of the parabola, find the slope of A Bdot

A normal chord of the parabola y^(2)=4ax subtends a right angle at the vertex if its slope is

If a normal subtends a right angle at the vertex of a parabola y^(2)=4ax then its length is

If a normal subtends a right angle at the vertex of a parabola y^(2)=4ax then its length is

A normal chord of the parabola y^2=4ax subtends a right angle at the vertex if its slope is