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AP EAPCET 07-Jul-2022 Shift 2 Paper
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© examsnet.com
Question : 6
Total: 160
If
A
=
[
1
−
2
2
2
−
6
5
5
0
4
]
then Adj
A
=
[
−
24
8
2
17
−
6
−
1
30
−
10
2
]
[
−
24
8
2
17
−
6
1
−
30
10
−
2
]
[
−
24
8
2
17
−
6
−
1
30
−
10
−
2
]
[
24
−
8
2
−
17
−
6
1
30
−
10
−
2
]
Validate
Solution:
👈: Video Solution
A
=
[
1
−
2
2
2
−
6
5
5
0
4
]
|
A
|
=
1
(
−
24
)
+
2
(
8
−
25
)
+
2
(
0
+
30
)
=
−
24
−
34
+
60
=
2
Cofactor matrix of
A
,
C
=
[
−
24
17
30
8
−
6
−
10
2
−
1
−
2
]
Adj
(
A
)
=
C
T
=
[
−
24
8
2
17
−
6
−
1
30
−
10
−
2
]
© examsnet.com
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