The radius of circle, touching the parabola `y^(2)=8x` at (2, 4) and passing through (0, 4), is

Tangents are drawn to the parabola y^2=4x at the point P which is the upper end of latusrectum . Radius of the circle touching the parabola y^2=4x at the point P and passing through its focus is

Tangents are drawn to the parabola y^2=4x at the point P which is the upper end of latusrectum . Radius of the circle touching the parabola y^2=4x at the point P and passing through its focus is

The radius of the circle, which touches the parabola y^2 = 4x at (1,2) and passes through the origin is:

The equation of the circle, which touches the parabola y^2=4x at (1,2) and passes through the origin is :

The equation of the circle, which touches the parabola y^2=4x at (1,2) and passes through the origin is :

The radius of a circle passing through origin and touching the parabola y^(2)=8x at (2,4) is r ,then r^(2) is equal to

Equation of a circle which touches the parabola y^(2)-4x+8=0, at (3,2) and passes through its focus is

The radius of circle which passes through the focus of parabola x^(2)=4y and touches it at point (6,9) is k sqrt(10), then k=

The center of the circle which cuts parabola orthogonally the parabola y^2=4x at (1,2) passes through

The radius of the circle which touches circle (x+2)^(2)+(y-3)^(2)=25 at point (1,-1) and passes through (4,0) is (a) 4 (b) 5 (c) 3 (d) 8