Show that the tangents at the extremities of any focal chord of a parabola intersect at right angles at the directrix.

Prove that the normal at the extermities of a focal chord of a parabola intersect at right angles.

Show that the tangent at one extremity of a focal chord of a parabola is parallel to the normal at the other extremity.

The tangents drawn at the extremities of a focal chord of the parabola y^(2)=16x

prove that the locus of the point of intersection of the tangents at the extremities of any chord of the parabola y^2 = 4ax which subtends a right angle at the vertes is x+4a=0 .

prove that the locus of the point of intersection of the tangents at the extremities of any chord of the parabola y^2 = 4ax which subtends a right angle at the vertes is x+4a=0 .

The tangents drawn at the extremeties of a focal chord of the parabola y^(2)=16x

The tangents at the ends of a focal chord of a parabola y^(2)=4ax intersect on the directrix at an angle of

Prove that the tangent at one extremity of the focal chord of a parabola is parallel to the normal at the other extremity.