Multiply Matrix A (1×3) by Matrix B (3×1)

[latex] \[ \textbf{Multiply Matrix A (1×3) by Matrix B (3×1), where:} \] \[ A = \begin{pmatrix} 2 & 4 & 6 \end{pmatrix}, \quad B = \begin{pmatrix} 1 \\ 3 \\ 5 \end{pmatrix} \] \[ \textbf{Solution:} \] \[ A \times B = \begin{pmatrix} 2 & 4 & 6 \end{pmatrix} \times \begin{pmatrix} 1 \\ 3 \\ 5 \end{pmatrix} \] \[ = (2 \cdot 1 + 4 \cdot 3 + 6 \cdot 5) \] \[ = 2 + 12 + 30 = 44 \]
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