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# Geometry, ellipse Watch

1. Hi i am having some trouble with geometry...
Find the equation in cartesian co-ordinates of the ellipse consisting of all
points P such that lAPl + lBPl = 10,where A is the point (3; 0) and B is the
point (-3; 0)?
Any help would be appreciated.
2. (Original post by nkennedy)
Hi i am having some trouble with geometry...
Find the equation in cartesian co-ordinates of the ellipse consisting of all
points P such that lAPl + lBPl = 10,where A is the point (3; 0) and B is the
point (3; 0)?
Any help would be appreciated.
A and B are the same point?
3. sorry B=(-3;0)

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