Find the equation of the set of points P,the sum of whose distances from A(4,0,0)and B(-4,0,0) is 10

Let the coordinate of P be (*h, k, l*)

Given: PA+PB= 10

Therefore,

Taking square on both sides, we get,

which is the required locus of P

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Find the equation of the set of points P,the sum of whose distances from A(4,0,0)and B(-4,0,0) is 10

Let the coordinate of P be (*h, k, l*)

Given: PA+PB= 10

Therefore,

Taking square on both sides, we get,

which is the required locus of P

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