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UPSC NDA I 2024 Mathematics Solved Paper
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© examsnet.com
Question : 11
Total: 120
Consider the following statements in respect of two non-singular matrices
A
and
B
of the same order
n
:
1.
adj
(
A
B
)
=
(
adj
A
)
(
adj
B
)
2.
adj
(
A
B
)
=
adj
(
B
A
)
3.
(
A
B
)
adj
(
A
B
)
−
|
A
B
|
I
n
is a null matrix of order
n
How many of the above statements are correct?
None
Only one statement
Only two statements
All three statements
Validate
Solution:
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