Revision as of 06:33, 6 December 2012 by Bakey (Talk | contribs)

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Q: Describe the elements of M2(Z) (see example 4) that have multiplicative inverses (units).

A: I don't really know. I got this problem wrong, and I'm not quite sure why. Some help would be greatly appreciated. :)

--Bakey 11:33, 6 December 2012 (UTC)

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Abstract algebra continues the conceptual developments of linear algebra, on an even grander scale.

Dr. Paul Garrett