CBSE - XI Science - Mathematics - Sets
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.
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