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[" 8.Let "A=[[1,2,1],[2,3,1],[1,1,5]]" ....

[" 8.Let "A=[[1,2,1],[2,3,1],[1,1,5]]" .Verify that "],[[" (i) "[adjA]^(-1)=adj(A^(-1))," (ii) "(A^(-1))^(-1)=," A "]]

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