Question

urgente pfv preciso de ajuda nao to conseguindo conpletar esta aki

Answer 1

$\left[\begin{array}{ccc}1&-2&0\\5&0&4\\2&-3&0\end{array}\right] \left[\begin{array}{ccc}1&-1&2\\0&1&4\\-3&0&0\end{array}\right] = \\ \left[\begin{array}{ccc}1.1-2.0+0(-3)&1.(-1)-2.1+0.0&1.2-2.4+0.0\\5.1+0.0+4(-3)&5.(-1)+0.1+4.0&5.2+0.4+4.0\\2.1-3.0+0(-3)&2.(-1)-3.1+0.0&2.2-3.4+0.0\end{array}\right]= \\ \left[\begin{array}{ccc}1&-3&-6\\-7&-5&10\\2&-5&-8\end{array}\right]$