Question

observe o sistema de equação a seguir...

Answer 1

Olá,

2x+3y-z = 5
-x+2y+z = 6
x-y+z = 2

$\left[\begin{array}{ccc}2&3&-1\\-1&2&1\\1&-1&1\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right] = \left[\begin{array}{ccc}5\\6\\2\end{array}\right]$


Resposta:

c)