ix Operations and

Question $6,4\mathrm{.}4\mathrm{.}33$

Find $AB,$ if possible.

$A=\left[\begin{array}{ccc}2& -3& 9\\ 0& 8& -2\end{array}\right],B=\left[\begin{array}{cc}-7& 3\\ 9& 2\end{array}\right]$

Find the product. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

A$.AB=($Simplify your answer.$)$

B$.$ The matrix product is not defined.