If for any \( 2 \times 2 \) square matrix \( A, A(\operatorname{adj} A)=\left[\begin{array}{ll}8...

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If for any \( 2 \times 2 \) square matrix \( A, A(\operatorname{adj} A)=\left[\begin{array}{ll}8 & 0 \\ 0 & 8\end{array}\right] \), then write the value of \( |A| \).
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