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Mathematics
Mathematics
Problem
If
A
=
[
2
−
3
−
4
1
]
A = \begin{bmatrix} 2 & -3 \\ -4 & 1 \end{bmatrix}
A
=
[
2
−
4
−
3
1
]
, then
adj
(
3
A
2
+
12
A
)
\text{adj}(3A^2 + 12A)
adj
(
3
A
2
+
12
A
)
is equal to : (1)
[
51
84
63
72
]
\begin{bmatrix} 51 & 84 \\ 63 & 72 \end{bmatrix}
[
51
63
84
72
]
(2)
[
72
−
63
−
84
51
]
\begin{bmatrix} 72 & -63 \\ -84 & 51 \end{bmatrix}
[
72
−
84
−
63
51
]
(3)
[
72
−
84
−
63
51
]
\begin{bmatrix} 72 & -84 \\ -63 & 51 \end{bmatrix}
[
72
−
63
−
84
51
]
(4)
[
51
63
84
72
]
\begin{bmatrix} 51 & 63 \\ 84 & 72 \end{bmatrix}
[
51
84
63
72
]
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