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How matrices are used in real life

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I am looking for examples of each of these, a couple of each would be great. I am having problems explaining to my daughter whom I homeschool how matrix multiplication and matrix inverse are used in our society today. Not just how each is used but how crucial this is in problem solving in real life. could you be kind enough to help with some real life samples and scenarios. Thanks for your kindness in responding.

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Discusses matrix application in real life.

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Firstly, if you need examples of matrices and how they are solved, the following URL is very useful and probably explain them better than I could! http://www.intmath.com/Matrices-determinants/matrix-multiplication-inverse.php
Obviously matrices are used on a daily basis in sciences, from physics to engineering to biology to math to social sciences but about the use of matrices in real life I think the best way is to think of ...

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