1.

If A and B be the points (3, 4, 5) and (-1, 3, -7) respectively, find the equation of the set of points P such that PA^(2)+PB^(2)=k^(2), where k is a constant.

Answer»


Answer :`X^(2)+y^(2)+z^(2)-2x-7y+2z=(K^(2)-109)/(2)`


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