Talk:Brillouin's theorem

Can someone cite a proof (or write it) of the idea that if two determinants only differ by one column or by one row that their linear combination may be expressed as one new determinant?Enjolras1789 (talk) 13:42, 17 January 2010 (UTC)

This page provides one, but I don't understand it well enough to add it: http://www.efgh.com/math/algebra/determinants.htm If it's on any Wikipedia page I think adding a link to the article would be useful. Mverleg (talk) 16:29, 8 March 2012 (UTC)