Multiply Matrices


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

Multiple Choice

Multiply Matrices


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

A) $\mathrm { AB }$ is not defined.
B)
$\left[\begin{array}{rrr}9 & -6 & 3 \\-6 & 8 & -5\end{array}\right]$

C) $\left[\begin{array}{rr}9 & -6 \\-6 & 8 \\3 & -5\end{array}\right]$
D)
$\left[ \begin{array} { l l } 9 & 0 \\ 0 & 4 \end{array} \right]$