16.-Linear-Algebra-by-Kenneth-Hoffman · Problem 1.5.1

Systems of Linear Equations

Mathematics — Linear Algebra · matrix-multiplication

Problem

Let A=[2−11121],B=[31−1],C=[1−1].A = \begin{bmatrix} 2 & -1 & 1 \\ 1 & 2 & 1 \end{bmatrix}, \qquad B = \begin{bmatrix} 3 \\ 1 \\ -1 \end{bmatrix}, \qquad C = [1 \quad -1]. Compute ABCABC and CABCAB.

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