The equation of the sphere concentric with the sphere `2x^2+2y^2+2z^2-6x+2y-4z=1` and double its radius is (A) `x^2+y^2+z^2-x+y-z=1` (B) `x^2+y^2+z^2-6x+2y-4z=1` (C) `2x^2+2y^2+2z^2-6x+2y-4z-15=0` (D) 2x^2+2y^2+2z^2-6x+2y-4z-25=0`

The equations of the sphere concentric with the sphere 2x^(2) +2y^(2) +2z^(2) - 6x +2y -4 z =1 and double its radius is :

Find the equation the equation of sphere cocentric with sphere 2x^2+2y^2+2z^2-6x+2y-4z=1 and double its radius.

Find the equation the equation of sphere cocentric with sphere 2x^2+2y^2+2z^2-6x+2y-4z=1 and double its radius.

Find the equation the equation of sphere cocentric with sphere 2x^2+2y^2+2z^2-6x+2y-4z=1 and double its radius.

Find the equation the equation of sphere concentric with sphere 2x^2+2y^2+2z^2-6x+2y-4z=1 but double its radius.

The equation of the sphere whose centre is (6, -1, 2) and which touches the plane 2x-y+2z-2=0 , is :a) x^(2)+y^(2)+z^(2)-12x+12y-4z-16=0 b) x^(2)+y^(2)+z^(2)-12x+2y-4z=0 c) x^(2)+y^(2)+z^(2)-12x+2y-4z+16=0 d) x^(2)+y^(2)+z^(2)-12x+2y-4z+6=0

The radius of the circle in which the sphere x^2+y^2+z^2+2x-2y-4z-19=0 is cut by the plane x+2y+2z+7=0 is

The radius of the circle in which the sphere x^2+y^2+z^2+2x-2y-4z-19=0 is cut by the plane x+2y+2z+7=0 is

The radius of the circle in which the sphere x^(2)=y^(2)+z^(2)+2z-2y-4z-19=0 is cut by the plane x+2y+2z+7=0 is