A. x2+y2-z2+2x-y-8z+5=0

B. x2+y2-z2+2x-y-8z-5=0

C. x2+y2+z2+2x-y-8z+5=0

D. x2-y2-z2+2x-y-8z-5=0

The centroid of the tetrahedron formed by the points(3,2,5), (-3,8,-5), (-3,2,1),(-1,4,-3) is

In ABC where A(4,5,6), B(3,2,1), C(5,4,3), if p,q,r are lengths of the medians through A,B,C then ascending order of p,q,r is

A plane passes through (2, 3, -1) and is perpendicular to the line having direction ratios ( 3, -4, 7). The perpendicular distance from the origin to this plane is

The ratio in which (5,4,-6) divides the line segment joining (3,2,-4),(9,8,-10) is

The circumcentre of the triangle formed by the points(1,2,3), (3,-1,5), (4,0,-3) is