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OpenStudy (firejay5):
Decide whether matrix addition and multiplication are associative. Justify your answers.
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OpenStudy (anonymous):
regular addition is associative, and since you add in matrices component wise, that is associative as well
OpenStudy (anonymous):
if you ever run across something that is not associative, run you will be in big trouble
OpenStudy (firejay5):
so are they? @satellite73
OpenStudy (anonymous):
oh yes
OpenStudy (anonymous):
matrix addition and multiplication is associative matrix multiplication is not commutative https://www.khanacademy.org/math/precalculus/precalc-matrices/properties-matrix-multiplication/v/associative-property-matrix-multiplication
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OpenStudy (firejay5):
don't you mean matrix multiplication is not associative
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