The question asks to label all elementary matrices, which I know are 1 row operation from the identity matrix however I can't understand why my answers are wrong, see imageenter image description here
2026-04-06 04:52:33.1775451153
Elementary Matrices ranking
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One of your answers is incorrect. As a hint, I would suggest you think about the shape of the identity matrix, and as a result the shape of an elementary matrix, and see if any of the answers you've selected doesn't match that shape.