Adjoint, inverse and rank of a matrixMedium

Cofactor Matrix and Determinant Properties

Let $A = \left[ {{a_{ij}}} \right] = \left[ {\begin{array}{*{20}{c}} {{{\log }_5}128}&{{{\log }_4}5}\\[0.9em] {{{\log }_5}8}&{{{\log }_4}25} \end{array}} \right]$ , If A_ij is the cofactor of a_ij, C_ij = $\sum\limits_{k = 1}^2 {{a_{ik}}\,\,{A_{jk}},}$ $1 \leqslant i$ , $j \leqslant 2$ , and C = [C_ij], then 8|C| is equal to :

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