If the length of a focal chord of the parabola `y^2=4a x` at `a` distance `b` from the vertex is `c ,` then prove that `b^2c=4a^3dot`

If the length of a focal chord of the parabola y^(2)=4ax at a distance b from the vertex is c then prove that b^(2)c=4a^(3).

The length of a focal chord of the parabola y^(2) = 4ax at a distance b from the vertex is c. Then

Length of the focal chord of the parabola y^(2)=4ax at a distance p from the vertex is:

Length of the focal chord of the parabola y^2=4ax at a distance p from the vertex is:

Length of the focal chord of the parabola y^2=4ax at a distance p from the vertex is:

The length of the focal chord of the parabola y^(2)=4x at a distance of 0.4 units from the origin is

The length of a focal chord of the parabola y2 = 4ax at a distance b from the vertex is c, then (A) b"c = 4a3 (C) 4bc = a2 15, (B) bc2 = 4a3 (D) ab = 4c3