UPSC NDA I 2024 Mathematics Paper

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Question : 12 of 120
 
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Consider the following statements in respect of a non-singular matrix A of order n :
1. A(adj‌AT)=A(adj‌A)T
2. If A2=A, then A is identity matrix of order n
3. If A3=A, then A is identity matrix of order n
Which of the statements given above are correct?
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