CBSE Class 12 Sample Paper for 2023 Boards

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Question 2 - CBSE Class 12 Sample Paper for 2023 Boards - Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at August 2, 2026 by

If A is a square matrix of order 3, |Aā€²|=-3, then |AAā€²|=

(a) 9 Ā 

(b) -9 Ā 

(c) 3 Ā 

(d) -3

Ā 

[Sample Paper] If A is a square matrix of order 3, |š“ā€²| = āˆ’3, then - CBSE Class 12 Sample Paper for 2023 Boards

Ā 

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Question 2 If A is a square matrix of order 3, |š“ā€²|=āˆ’3, then |š“š“ā€²|= (a) 9 (b) -9 (c) 3 (d) -3We know that |š‘Øā€²|=|š€|= āˆ’3 Now, |š‘Øš‘Øā€²|=|š“| Ɨ|š“^ā€² | = āˆ’3 Ɨ āˆ’3 = 9 So, the correct answer is (a)

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