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If A=[[0,0,1],[0,1,0],[1,0,0]],B=[[0,5,7...

If `A=[[0,0,1],[0,1,0],[1,0,0]],B=[[0,5,7],[0,0,6],[0,0,0]] and C=[[-1,3,5],[1,-3,-5],[-1,3,5]]`, show that `A^2=I`

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