.Find the equation ofthe circle which passes through the focus ofthe parabola `x^2=4y` and touches it at the point (6, 9).

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=

Find the radius of the largest circle,which passes through the focus of the parabola y^(2)=4(x+y) and is also contained in it.

Radius of the largest circle which passes 13 through the focus of the parabola y^(2)=4x and contained in it,is

Find the equation of the circle which passes through the two points (6,4),(8,-4) and has centre on the X-axis

Find the equation of line which is normal to the parabola x^(2)=4y and touches the parabola y^(2)=12x .

Find the equation of the circle passing through the point (-2,1) and touching the line 3x-2y-6=0 at the point (4,3).

Find the equation to the circle which passes through the point (2,4) and through the points in which the circle x^(2)+y^(2)-2x-6y+6=0 is cut by the line 3x+2y-5=0