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@paultpearson In teambasedinquirylearning.github.io/linear-algebra/G1.html we show how each row operation affects the area of the transformed unit square and allows us to compute determinants.Permalink On twitter.com
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@paultpearson Er, well, I guess those are *column* operations. But since det(AB)=det(BA)=det(A)det(B), and row/column operations are just left/right products with an elementary matrix...On twitter.com