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If A is a square matrix of order 3 such that $A^{2} = 2 A,$ then $| A |^{2}$ is equal to

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2|A|

8 |A|

16 |A|

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Correct option is B

A2=|2A|=23|A|⇒|A|2=8|A|

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If A is a square matrix of order 3 such that A2 = 2A, then |A| 2 is equal to

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Ready to Test Your Skills?

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If A is a square matrix of order 3 such that $A^{2} = 2 A,$ then $| A |^{2}$ is equal to