Find the centre and radius of the sphere `2x^2+2y^2+2z^2-2x-4y+2z+3=0`.

the centre and radius of the sphere 2x^(2)+2y^(2)+2z^(2)-2x+4y+2z+1=0 are respectively?

The centre and radius of the sphere 3x^(2) + 3y^(2) + 3z^(2) - 2x - 12y + 6z + 7 = 0 are

Find the centre and radius of the circle x^(2)+y^(2)+z^(2)-2y-4z=11,x+2y+2z=15

What is the radius of the sphere x^2+y^2+z^2-x-y-z=0 ?

Find the centre and radius of the circle x^(2)+y^(2)+z^(2)=9;x+y+z=3. Also find the equation of the sphere having this circle as a great circle.

What is the radius of the sphere x^2+y^2+z^2-x-z=0 ?

The radius of the sphere x^(2)+y^(2)+z^(2)=12x+4y+3z is

The radius of the sphere 3x^2+3y^2+3z^2-8x+4y+8z-15=0 is

The distance of the centre of the sphere x^2 + y^2 + z^2 - 2x - 4y = 0 from the origin is