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Find the inverse of [2 0-1 5 1 0 0 1 3]...

Find the inverse of `[2 0-1 5 1 0 0 1 3]`

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`A=[[2, 0, -1], [5, 1, 0], [0, 1, 3]]`
`|A|=1`
`adj A=[[3, -1, 1], [-15, 6, -5], [5, -2, 2]]`
`A^(-1)=[[3, -1, 1], [-15, 6, -5], [5, -2, 2]]`
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