Find the matrix product when possible.
-$\left[ \begin{array} { l l l } - 1 & 2 & 3 \end{array} \right] \left[ \begin{array} { r } 8 \ 0 \ - 3 \end{array} \right]$
A)
[-17]
B)
$\left[ \begin{array} { r } - 8 \ 0 \ - 9 \end{array} \right]$
C)
[18]
D)
$\left[ \begin{array} { l l l } - 8 & 0 & - 9 \end{array} \right]$

Question

Quizplus · Accepted Answer

The product of the 1x3 matrix and the 3x1 matrix is a 1x1 matrix, calculated as (-1*8) + (2*0) + (3*-3) = -8 + 0 - 9 = -17, which matches choice A.

Find the Matrix Product When Possible [−123][80−3]\left[ \begin{array} { l l l } - 1 & 2 & 3 \end{array} \right] \left[ \begin{array} { r } 8 \\ 0 \\ - 3 \end{array} \right][−1​2​3​]​80−3​​

Find the Matrix Product When Possible $\left[ \begin{array} { l l l } - 1 & 2 & 3 \end{array} \right] \left[ \begin{array} { r } 8 \\ 0 \\ - 3 \end{array} \right]$