Find the eqation of thge set of points P, the sum of whose distances

Let the point be (x,y,z).

Distance from A = [(x-4)² + y² + z²]

Distance from B = [(x+4)² + y² + z²]

Sum of the two distances,

[(x-4)² + y² + z²] + [(x+4)² + y² + z²] = 10

This is the required equation.

Regards,

Team,

TopperLearning.