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If A=[(1,-2,1),(0,-1,1),(2,0,-3)], find ...

If `A=[(1,-2,1),(0,-1,1),(2,0,-3)]`, find `A^(-1)` and solve the system of equations `x-2y+z=0,-y+z=-2,2x-3z=10`

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The correct Answer is:
`x=3,y=1,z=2`
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