Consider the following two matrices A, B and the vector x: A = ?? 0.2 0.3 0.5 0.5 0.4 0.1 0.3 0.3 0.4 ? ? , B = ? ? 0.4 0.1 0.5 0.50.4 0.1 0.1 0.5 0.4 ? ? , x = ? ? 0.4 0.2 0.4 ? ? Input A, B and xinto MATLAB. 2 (a) Compute A4x. Report your answer. (b) ComputeA2BT x. Report your answer. (c) What are the sizes of the output ofxxT,x Tx, xx, and x TAx in MATLAB? Explain why you expect theirsizes to be like this?
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