From classbrain.com Mathematics My brother says that you can use infinity in a subtraction problem, but it doesn't seem likely. If infitity is an unidentified number, how could you subtract it from a number, or subtract from it? What is the truth? You win this argument. You really can't subtract infinity. Here is a good discussion about this issue: http://mathforum.org/library/drmath/view/57069.html Source: Dr. MathCynthia Kirkeby ASK ClassBrain © Copyright 2003 by classbrain.com |