If the line `a x+b y=2` is a normal to the circle `x^2+y^2-4x-4y=0` and a tangent to the circle `x^2+y^2=1` , then `a and b are`

The line x+3y=0 is a diameter of the circle x^2+y^2-6x+2y=0

If y=4x+c is a tangent to the circle x^(2)+y^(2)=9 , find c.

If the line x+2b y+7=0 is a diameter of the circle x^2+y^2-6x+2y=0 , then find the value of b

Find the equation of the normal to the circle x^2+y^2-2x=0 parallel to the line x+2y=3.

How many tangents to the circle x^2 + y^2 = 3 are normal tothe ellipse x^2/9+y^2/4=1?

The circle x^2 + y^2 - 8x + 4y + 4 = 0 toches

Find the image of the circle x^2+y^2-2x+4y-4=0 in the line 2x-3y+5=0

If the tangents are drawn to the circle x^2+y^2=12 at the point where it meets the circle x^2+y^2-5x+3y-2=0, then find the point of intersection of these tangents.

The equation of the normal to the circle x^(2) + y^(2) -2x- 2y + 1=0 which is parallel to the lines 2x + 4y =3 is