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What is a underdetermined, overdetermined or determined auxiliary line?
Posted:
Jun 6, 2006 5:53 PM
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Hello, I have this math problem that I have been struggling with, the problem asks me to determine whether a specific auxiliary line is underdetermined, overdetermined or determined. Despite my best efforts looking though countless websites and dozens of math books I could find virtually no mention of these terms being applied to auxiliary lines. Sure I have seen where these terms have been applied to systems of linear equations but I just don't know how they would be applied to auxiliary lines. I do know of a book which describes how to solve problems like these "Elementary Geometry for College Students, 3rd edt. By Alexander, Daniel C" but I don't want to spend $100+ on a book, just to find out how to solve one problem. Any help on how to answer these kinds of questions would be very much appreciated.
Note: When I say auxiliary line I' am referring to these lines: http://www.sparknotes.com/math/geometry3/geometricproofs/section3.rhtml
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