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If `A` is an invertible matrix of order `3xx3` such that `|A|=2` . Then, find `a d j(a d jA)` .

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To find \( \text{adj}(\text{adj} A) \) for an invertible matrix \( A \) of order \( 3 \times 3 \) with \( |A| = 2 \), we can follow these steps: ### Step 1: Understand the relationship between the adjoint and determinant The adjoint of a matrix \( A \), denoted as \( \text{adj} A \), has a specific relationship with the determinant of \( A \). For an \( n \times n \) matrix, the determinant of the adjoint can be expressed as: \[ |\text{adj} A| = |A|^{n-1} \] For our case, since \( A \) is a \( 3 \times 3 \) matrix, we have: ...
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