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Feb 3, 2011 at 23:28 vote accept Italo
Feb 3, 2011 at 17:39 comment added Italo @Snark: yes i tried in low dimension and the result is correct, i didn't find this relation as an exercise or homework but in an article i'm reading. It is said "well known identity on determinants" so i tried to prove it because i didn't know that identity.
Feb 3, 2011 at 16:11 answer added Denis Serre timeline score: 2
Feb 3, 2011 at 15:53 comment added Julien Puydt First : did you try in low dimension, to get a feel of the problem. Second : is it homework you want done?
Feb 3, 2011 at 15:12 history asked Italo CC BY-SA 2.5