Math, asked by vikasrahul9822, 1 year ago

A is a 3*3 square matrix, prove that, | adj A = | A |²

Answers

Answered by Anushkadarekar
1
If you have a square matrix of order n then,

|adj A|=|A|^{n-1}

here,
|A|=5
so,
|adj A|=5^{3–1}=25
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