UPSC NDA I and II 2020 Math Solved Paper

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Question : 5 of 120
 
Marks: +1, -0
Consider the following in respect of a non-singular matrix of order 3 :
1. A(adj‌A)=(adj‌A)A
2. |adj‌A|=|A|
Which of the above statements is/are correct?
[NDA-I 2020]
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