Let A and B be the matrices given by A = 3 7 2 1 and B = 1 5 0 0 1 1 101 and u = (1, 1)

Chapter 12, Problem 12.5.7

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Let A and B be the matrices given by A = 3 7 2 1 and B = 1 5 0 0 1 1 101 and u = (1, 1) and v = (1, 0, 3) be vectors. Which of the following are defined? (a) Au (b) Bu (c) A(u + v ) (d) A + u (e) (Au )/(v v ) (f) (u v )A 8. Let A =

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