What is the result of multiplying the row vector (12)\begin{pmatrix} 1 & 2 \end{pmatrix}(12) by the zero matrix (0000)\begin{pmatrix} 0 & 0 \\ 0 & 0 \end{pmatrix}(0000)?
(12)\begin{pmatrix} 1 & 2 \end{pmatrix}(12)
(00)\begin{pmatrix} 0 & 0 \end{pmatrix}(00)
000
Undefined