Matrices
Concept 3 of 6 in Matrices
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[12][34]\begin{bmatrix} 1 & 2 \end{bmatrix}\begin{bmatrix} 3 \\ 4 \end{bmatrix}[12][34] is a single number. Now swap the two: [34][12]\begin{bmatrix} 3 \\ 4 \end{bmatrix}\begin{bmatrix} 1 & 2 \end{bmatrix}[34][12]. Same answer?
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