Compute the Determinant of the Matrix by Cofactor Expansion$\left[ \begin{array} { r r r } 4 & - 8 & 2 \ 0 & 1 & 8 \ 0 & 0 & - 9 \end{array} \right]$

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The Answer of Compute the Determinant of the Matrix by Cofactor Expansion$\left[ \begin{array} { r r r } 4 & - 8 & 2 \ 0 & 1 & 8 \ 0 & 0 & - 9 \end{array} \right]$

Compute the Determinant of the Matrix by Cofactor Expansion $\left[ \begin{array} { r r r } 4 & - 8 & 2 \\ 0 & 1 & 8 \\ 0 & 0 & - 9 \end{array} \right]$

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Compute the Determinant of the Matrix by Cofactor Expansion [4−8201800−9]\left[ \begin{array} { r r r } 4 & - 8 & 2 \\ 0 & 1 & 8 \\ 0 & 0 & - 9 \end{array} \right]​400​−810​28−9​​

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Compute the Determinant of the Matrix by Cofactor Expansion $\left[ \begin{array} { r r r } 4 & - 8 & 2 \\ 0 & 1 & 8 \\ 0 & 0 & - 9 \end{array} \right]$