Say I have a matrix ##A## that has linearly independent columns. Then clearly ##A^T## has lin. indep. rows. So what can we say about ##A^TA##? Specifically, is there anything we can say about the rows/columns of ##A^TA##? I'm thinking there has to be some sort of relation but I don't know what that is (if there is indeed any).(adsbygoogle = window.adsbygoogle || []).push({});

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# Linearly independence question

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