Can Matrices Be Even More Fun

This works for larger size matrices also. (My favorite!) B) The “Lattice method”. This works for 3 X 3 matrices only! a b c a b. d e f d e = aei + bfg + cdh - gec - hfa - idb. g h i g h. Use both of these methods to evaluate each of the following. B) Evaluate the following. without using a calculator ................
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