Question

If A = \(\begin{bmatrix}1&-1&3\\[0.3em]-2&4&1\\[0.3em]5&-4&0\end{bmatrix}\) and B = \(\begin{bmatrix}2\\[0.3em]-1\\[0.3em]4\end{bmatrix}\)then find (adj A).B

Answer 1

\(= \begin{bmatrix}-32\\[0.3em]-3\\[0.3em]-15\end{bmatrix}\)