Kizspy | Question: 30
(Choose 1 answer)
(See picture)
A. (i)
B. (ii)
C. (iii)
D. (iv)
E. None of the choices is correct
Rewrite the system of equations \begin{cases}x+2y+3z=3\\ -x+5y+7z=10\\ 2x+3y+6=2\end{cases} into a matrix-vector product: Av = b, where A is a 3x3 matrix and v, b are vectors in R³.
(\begin{matrix}1&2&3\\ -1&5&7\\ 2&3&6\end{matrix})(\begin{matrix}x\\ y\\ z\end{matrix})=(\begin{matrix}10\\ 3\\ 2\end{matrix})
(\begin{matrix}1&-1&2\\ 2&5&3\\ 3&7&6\end{matrix})(\begin{matrix}x\\ y\\ z\end{matrix})=(\begin{matrix}3\\ 10\\ 2\end{matrix})
(\begin{matrix}-1&5&7\\ 1&2&3\\ 2&3&6\end{matrix})(\begin{matrix}x\\ y\\ z\end{matrix})=(\begin{matrix}3\\ 10\\ 2\end{matrix})
(\begin{matrix}1&2&3\\ -1&5&7\\ 2&3&6\end{matrix})(\begin{matrix}x\\ y\\ z\end{matrix})=(\begin{matrix}3\\ 10\\ 2\end{matrix})
FUOVER
