Selectividad Andalucía 2002-2-A4

selectividad
andalucía
matrices
ecuacion_matricial
discutir_sistema
MatemáticasII_Andalucía_2002
sistema_con_parámetros

Considera las matrices

$A = \left( \begin{array}{ccc} \alpha & 1 & 1 \\ -1 & 3 & 2 \\ 2 & 1-\alpha & 3 \end{array} \right)$
,
$B = \left( \begin{array}{ccc} \alpha-1 & 0 & -1 \\ 1 & -1 & 2 \\ 0 & -\alpha & 0 \end{array} \right)$
,
$b = \left( \begin{array}{c} -1 \\ -5 \\ 3 \end{array} \right)$
,
$c = \left( \begin{array}{c} -2 \\ 5 \\ 0 \end{array} \right)$
,
$X = \left( \begin{array}{c} -x \\ y \\ z \end{array} \right)$