Question

let matrix A= (top: 1,-1,3; middle: 5,6 -4; bottom: 7,4,2) and let T be multiplication by the matrix A


c) rank and nullity of T and A
Please, help

Answer 1

\[\left[\begin{matrix}1 & -1 & 3 \\ 5 & 6 & -4\\7 & 4 & 2\end{matrix}\right]\]

Answer 2

i got it.