Question: In general, matrix multiplication is not commutative. Under what conditions is it commutative. Give one necessary condition and five distinct, sufficient conditions, i . e

In general, matrix multiplication is not commutative. Under what conditions is it commutative.
Give one necessary condition and five distinct, sufficient conditions, i.e. if you say that AB =BA when condition
x is true about A, you cannot also say when condition x is true about B.

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