normals are drawn from a point p with slopes?
Normals are drawn from a point P with slopes m1,m2andm3 are drawn from the point p not from the parabola y2=4x. For m1m2=α, if the locus of the point P is a part of the parabola itself, then the value of α is (a) 1 (b)-2 (c) 2 (d) -1.