Question
Fri April 16, 2010 By: Prashant Jain

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

Expert Reply
Fri April 16, 2010

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.

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