The number of parabolas that can be drawn if two ends of the latus rectum are given 1 (b) 2 (c) 4 (d) 3

The number of parabolas that can be drawn , if two ends of the latus rectum are given, is

Standard equation of parabola having (2,4) and (2,-4) as ends of latus rectum, is

If the normals of the parabola y^(2)=4x drawn at the end points of its latus rectum are tangents to the circle (x-3)^(2)+(y+2)^(2)=r^(2) , then the value of r^(4) is equal to

If the normals of the parabola y^(2)=4x drawn at the end points of its latus rectum are tangents to the circle (x-3)^(2)+(y+2)^(2)=r^(2) , then the value of r^(4) is equal to

If the normals of the parabola y^(2)=4x drawn at the end points of its latus rectum are tangents to the circle (x-3)^(2)+(y+2)^(2)=r^(2) , then the value of r^(2) is -

·If the normals of the parabola y^2=4x drawn at the end points of its latus rectum are tangents to the circle (x-3)^2 (y+2)^2=r^2 , then the value of r^2 is

·If the normals of the parabola y^2=4x drawn at the end points of its latus rectum are tangents to the circle (x-3)^2 (y+2)^2=r^2 , then the value of r^2 is

If the normals of the parabola y^(2)=4x drawn at the end points of its latus rectum are tangents to the circle (x-3)^(2)(y+2)^(2)=r^(2) then the value of r^(2) is

If the normals of the parabola y^2=4x drawn at the end points of its latus rectum are tangents to the circle (x-3)^2 +(y+2)^2=r^2 , then the value of r^2 is