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If A is a square matrix of order 3 such ...

If A is a square matrix of order 3 such that `||A` =3, then find the value of `|a d j(a d jA)|dot`

Text Solution

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We know that `|adj(adjA)|=|A|^((n−1)^2)`
Thus,`|adj(adjA)|=(3)^4=81`
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