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Mathematics
Problem
For the matrix
A
=
(
2
−
1
3
0
1
4
−
2
5
−
1
)
A=\begin{pmatrix}2 & -1 & 3\\ 0 & 1 & 4\\ -2 & 5 & -1\end{pmatrix}
A
=
2
0
−
2
−
1
1
5
3
4
−
1
, find the value of
(
adj
A
)
13
(\text{adj}\,A)_{13}
(
adj
A
)
13
. a)
7
7
7
b)
−
1
-1
−
1
c)
−
7
-7
−
7
d)
2
2
2
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