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## Main Question or Discussion Point

is multiplication of determinant commutative ?

if so , then is this correct: |A||B|=|B||A|=|AB|=|BA| ?

then what does |AB|=|BA| imply ??

if so , then is this correct: |A||B|=|B||A|=|AB|=|BA| ?

then what does |AB|=|BA| imply ??