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If A=[(1, 2 ,2 ),(2 ,1 ,2),( 2 ,2, 1)] ...

If `A=[(1, 2 ,2 ),(2 ,1 ,2),( 2 ,2, 1)]` , then prove that `A^2-4A-5I=O` .

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IF A=[{:(1,2,2),(2,1,2),(2,2,1):}] then show that A^2-4A-5I=O .

IF A=[{:(1,2,2),(2,1,2),(2,2,1):}] then show that A^2=4A-5I=O .

If A=[{:(1,2,2),(2,1,2),(2,2,1):}] , then show that A^(2)-4A-5I_(3)=0 . Hemce find A^(-1) .

If A=[{:(1,2,2),(2,1,2),(2,2,1):}] , prove that A^(2)-4A-5I=O and hence, obtain A^(-1) .

If A =[[1,2,2],[2,1,2],[2,2,1]] then prove that A^2-4A-5I=0 .

If A={:[(1,2,2),(2,1,2),(2,2,1)] , prove thst A^2-4A-5I = O and hence, obtain A^-1 .

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