UPSC NDA II 2025 Mathematics Paper
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Question : 15 of 120
Marks:
+1,
-0
Consider the following in respect of non-singular matrices A and B:
I.( A B ) − 1 = A − 1 B − 1 .
II.( B A ) ( A B ) − 1 = I .
III.( A B ) T = A T B T .
How many of the above are correct?
I.
II.
III.
How many of the above are correct?
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