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Mathematics
Problem
The positive value of the determinant of the matrix
A
A
A
, whose
Adj
(
Adj
(
A
)
)
=
(
14
28
−
14
−
14
14
28
28
−
14
14
)
\text{Adj}(\text{Adj}(A)) = \begin{pmatrix} 14 & 28 & -14 \\ -14 & 14 & 28 \\ 28 & -14 & 14 \end{pmatrix}
Adj
(
Adj
(
A
))
=
14
−
14
28
28
14
−
14
−
14
28
14
, is. [JEE MAINS - ONLINE - 2022]
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