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Matriceshard
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Let A=(2103)A = \begin{pmatrix} 2 & 1 \\ 0 & 3 \end{pmatrix}A=(20​13​) and B=(1−120)B = \begin{pmatrix} 1 & -1 \\ 2 & 0 \end{pmatrix}B=(12​−10​). Which of the following statements about matrix multiplication is TRUE?