Are there two matrices A and B such that A*B is the zero matrix but B*A is not?(adsbygoogle = window.adsbygoogle || []).push({});

I'm leaning toward no.. I'm composing my solution right now.

Bah the only thing I can come up with is that if any row of A can be treated as a vector and any column of row B can be treated as a vector, for element (i, j) in the matrix AB will be 0 iff the vector of row i in A and column j in B are orthogonal (dot product is 0). I can't get much further right now :(

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# Homework Help: Interesting Matrix Question

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