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Matrices Selectividad Catalunya

, por dani

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Sean las matrices
A =\left( \begin{array}{cc} 1 & 0 \\ -1 & 0 \end{array} \right) ,
B =\left( \begin{array}{cc} 0 & 1 \\ 1 & -1 \end{array} \right) ,
C =\left( \begin{array}{cc} -1 & -1 \\ 1 & 1 \end{array} \right)

Halla X = A \cdot (B-C)