Calcular determinantes

matrices
determinantes

Calcula los determinantes de las siguientes matrices
$A = \left( \begin{array}{cc} 1 & -8 \\ 0 & 3 \end{array} \right)$
$\qquad$ $B= \left( \begin{array}{cc} 3 & -1 \\ -15 & -4 \end{array} \right)$

$C = \left( \begin{array}{ccc} 1 & -2 & 1 \\ 0 & -2 & 4 \\ 1 & 3 & 5 \end{array} \right)$
$\qquad$ $D = \left( \begin{array}{ccc} 5 & -1 & 2 \\ 1 & 2 & 3 \\ 6 & 1 & 5 \end{array} \right)$

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determinantes
matrices