If A is a n × n matrix, then adj ( adj A ) =, ∣ A ∣ n − 1 A, ∣ A ∣ n − 2 A, ∣ A ∣ n n, None of these

We know by the fundamental concept that adj ( adj A ) = ∣ A ∣ n − 2 A .

If A is a n × n matrix, then adj ( adj A ) =

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If $A$ is a $n \times n$ matrix, then $\operatorname{adj}(\operatorname{adj} A)=$

MathematicsMatricesJEE Main

Options:

Solution:

2561 Upvotes Verified Answer

The correct answer is: $|A|^{n-2} A$

We know by the fundamental concept that $\operatorname{adj}(\operatorname{adj} A)=\left|A\right|^{n-2} A$.

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