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AP EAMCET Engineering 2015 Code C Paper
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© examsnet.com
Question : 50
Total: 160
If A is the square matrix of order 3, then
|
Adj
(
Adj
A
2
)
|
=
|
A
|
2
|
A
|
4
|
A
|
8
|
A
|
16
Validate
Solution:
|
Adj
(
Adj
)
(
A
2
)
|
=
|
A
2
|
(
n
−
1
)
2
=
|
A
|
2
(
n
−
1
)
2
n
=
3
=
|
A
|
8
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