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A is a square matrix with ∣A∣ = 4. then find the value of ∣A. (adj A)∣. - Mathematics

Sum

A is a square matrix with ∣A∣ = 4. then find the value of ∣A. (adj A)∣.

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Solution

We know |A adj A| = |A|n.

|A| = 4

|A (adj A)| = 4n  ........(where nn is the order of matrix A)

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