(a) Show that for two n n matrices A and B, and x Rn,
Chapter , Problem 35(choose chapter or problem)
(a) Show that for two n n matrices A and B, and x Rn, (AB)x = A(Bx). (b) What does the equality in part (a) imply about the relationship between the composition of the mappings x Bx, y Ay, and matrix multiplication?
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