Question

Find the product, AB, if possible.

3 -2
A= 6 0


0 -2
B= 2 6

Answer 1

`A= \left[\begin{array}{cc}3&-2\\6&0\end{array}\right] \\ \\B= \left[\begin{array}{cc}0&-2\\2&6\end{array}\right] \\ \\AB= \left[\begin{array}{cc}3&-2\\6&0\end{array}\right] \left[\begin{array}{cc}0&-2\\2&6\end{array}\right]`


`\\ \\AB= \left[\begin{array}{cc}3*0-2*2&3(-2)-2*6\\6*0+0*2&6(-2)+0*6\end{array}\right] \\ \\AB= \left[\begin{array}{cc}-4&-18\\0&-12\end{array}\right]`