3-d

Related Questions

• If the plane $2ax-3ay+4az+6=0$ passes through the midpoint of the line joining the centres of the spheres ${{x}^{2}}+{{y}^{2}}+{{z}^{2}}+6x-8y-2z=13$ and ${{x}^{2}}+{{y}^{2}}+{{z}^{2}}-10x+4y-2z=8$, then $a$ equals

  ---

• The ratio in which the line joining the points (a, b, c) and (–a, –c, –b) is divided by the xy-plane is

  ---

• Image point of $(1,\,3,4)$ in the plane $2x-y+z+3=0$ is

  ---

• $XOZ$ plane divides the join of (2, 3, 1) and (6, 7, 1) in the ratio

  ---

• A variable plane is at a constant distance p from the origin and meets the axes in A, B and C. The locus of the centroid of the tetrahedron $OABC$ is

  ---