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Can you use infinity in a subtraction problem?
By Cynthia Kirkeby
Dec 29, 2005, 17:23



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. Math

Cynthia Kirkeby
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