Suppose that A is an l p matrix, B is an m q, matrix, and C is an n r matrix.What can

Chapter 9, Problem 30

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Suppose that A is an l p matrix, B is an m q, matrix, and C is an n r matrix.What can you say about l, m, n, p, q, and r if the products that follow are defined? State the size of the resulting matrix. (a) ABC (b) AB_C (c)BAC_ (d) A_CB_

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