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Obtain the inverse of the following matr...

Obtain the inverse of the following matrix using elementary operations `A=[(0,1,2),(1,2,3),(3,1,1)]`

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The correct Answer is:
`[((1)/(2),(-1)/(2),(1)/(2)),(-4,3,-1),((5)/(2),(-3)/(2),(1)/(2))]`
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