In triangle ABC there is point D on line segment AB, so that , and there is point E on BC, so that . Point F is the point where line segments AE and DC intersect. Express the relationship (ratio) between ( , ).
In triangle ABC there is point D on line segment AB, so that , and there is point E on BC, so that . Point F is the point where line segments AE and DC intersect. Express the relationship (ratio) between ( , ).