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Find the adjoint and inverse of the matr...

Find the adjoint and inverse of the matrix `[{:(2,1,2),(1,0,1),(2,2,1):}]`

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The correct Answer is:
`[(-2,3,1),(1,-2,0),(2,-2,-1)],[(-2,3,1),(1,-2,0),(2,-2,-1)]`
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