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For the matrix A=[1-1 1 2 3 0 18 2 10] ,...

For the matrix `A=[1-1 1 2 3 0 18 2 10]` , show that `A(a d j\ A)=O` .

Text Solution

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`Aadj A=|A| I`
`|A|=[[1, -1 , 1], [2 , 3 , 0 ], [18 , 2 , 10]]`
`=1(30-0)+1(20-0)+1(4-54)`
...
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