If A=[aij]4×4, such that aij{2,when i=j0,when i≠j,then {det(adj(adj – InterviewSolution

1.	If A=[aij]4×4, such that aij{2,when i=j0,when i≠j,then {det(adj(adj A))7} is where {.} represent fractional part function)
Answer» If $A = [a_{i j}]_{4 \times 4}$ , such that $a_{i j} {\begin{matrix} 2, w h e n i = j 0, w h e n i \neq j \end{matrix}, t h e n {\frac{d e t (a d j (a d j A))}{7}}$ is where {.} represent fractional part function)

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