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`

If the line ax+by=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 bare

If the line 3x-2y+p = 0 is normal to the circle x^(2)+ y^(2) = 2x-4y ,then p will be

prove that the line 2x + y = 1 is a tangent to the circle x^2+y^2+6x-4y+8=0 .

If y+c=0 is a tangent to the circle x^2+y^2-6x-2y+1=0 at (a,4) then

If the straight line ax + by = 2 ; a, b!=0 , touches the circle x^2 +y^2-2x = 3 and is normal to the circle x^2 + y^2-4y = 6 , then the values of 'a' and 'b' are ?

If the straight line ax + by = 2 ; a, b!=0 , touches the circle x^2 +y^2-2x = 3 and is normal to the circle x^2 + y^2-4y = 6 , then the values of 'a' and 'b' are ?

If y+c=0 is a tangent to the circle x^(2)+y^(2)-6x-2y+1=0 at (a, 4), then

The normal at (1,1) to the circle x^(2)+y^(2)-4x+6y-4=0 is

If the straight line ax+by=2;a,b!=0 touches the circle x^(2)+y^(2)-2x=3 and is normal to the circle x^(2)+y^(2)-4y=6 ,then the values of 'a' and 'b'are?