Multiply Matrices


- A) $\mathrm { AB }$ Is Not Defined

Multiple Choice

Multiply Matrices


- $A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\ 0 & 4 & - 2 \end{array} \right] , B = \left[ \begin{array} { r r } 5 & 0 \\ - 2 & 2 \end{array} \right]$

A) $\mathrm { AB }$ is not defined.
B) $\left[ \begin{array} { r r r } 15 & - 10 & 5 \\ - 6 & 12 & - 6 \end{array} \right]$
C)
$$\left[ \begin{array} { r r } 15 & - 6 \\- 10 & 12 \\5 & - 6\end{array} \right]$$
D)
$\left[\begin{array}{rr}15 & 0 \\0 & 8\end{array}\right]$