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Dadas as matrizes A = \(\begin{pmatrix} 4 & 8 \\ 0 & -2 \end{pmatrix}\), B = \(\begin{pmatrix} 8 & 4 \\ -8 & 0 \end{pmatrix}\) e C = \(\begin{pmatrix} 6 & 0 \\ -7 & 4 \end{pmatrix}\), analisar os itens abaixo: I) A + B + C = \(\begin{pmatrix} 10 & 12 \\ -15 & 2 \end{pmatrix}\)
II) 3(A - B) + C2 = \(\begin{pmatrix} -24 & 12 \\ 38 & 2 \end{pmatrix}\)
III) det(A) + det(B) + det(C) = 64
Estão CORRETOS: