Answer each of the following questions in one word or one sentence ...

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Answer each of the following questions in one word or one sentence or as per exact requirement of the quesion:

Let \( A \) be a \( 3 \times 3 \) square matrix such that \( A(\operatorname{adj} A)=2 I \), where \( I \) is the identity matrix. Write the value of \( |\operatorname{adj} A| \).
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