From the point (3 0) 3- normals are drawn to the parabola `y^2 = 4x`. Feet of these normal are P ,Q ,R then area of triangle PQR is

From a point (h,k) three normals are drawn to the parabola y^2=4ax . Tangents are drawn to the parabola at the of the normals to form a triangle. The Centroid of G of triangle is

From a point (h,k) three normals are drawn to the parabola y^2=4ax . Tangents are drawn to the parabola at the of the normals to form a triangle. The centroid G of triangle is

Three normals are drawn to the parabola y^(2) = 4x from the point (c,0). These normals are real and distinct when