Find the equation of the sphere having the circle `x^2+y^2+z^2=9;x-2y+2z=5` as a great circle.

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.

If the equation of the sphere through the circle x ^(2) +y ^(2) + z ^(2) = 9, 2x + 3y + 4z = 5 and through the point (1,2,3) is 3 (x ^(2) + y ^(2) + z ^(2)) - 2x - 3y - 4z = C, then the value of C is

Find the parametric equation of the circles : x^2 +y^2 =9

Find the parametric equation of the circles : x^2 +y^2 =9

Find the equation of the sphere concentric with the sphere x^2+y^2+z^2+4x-6y+8z-5=0 and passing through origin.

Find the equation of the circle concentric with the circle x^2 +y^2 - 4x - 6y-9=0 and passing through the point (-4, -5)

Find the equation of the circle concentric with the circle x^2 +y^2 - 4x - 6y-9=0 and passing through the point (-4, -5)

Find the equation of the circle passing through the centre of the circle x^2 +y^2 -4x-6y=8 and being concentric with the circle x^2 +y^2 - 2x-8y=5 .

If the equation of the sphere through the circle and the plane x ^(2) + y ^(2) + z^(2) = 5, 2x + 3y + 4z = 5 and through the origin is x ^(2) + y ^(2) + z ^(2) - 2x - 3y - 4z + c =0 .Then value of c is