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A=([1,2,2],[2,1,2],[2,2,1])" prove that ...

A=([1,2,2],[2,1,2],[2,2,1])" prove that "A^(2)-4A-5I=" Hence find "A^(-1)

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

For the matrix A=[{:(1,2,2),(2,1,2),(2,2,1):}] . Show that A^2-4A-5I=0 Hence find A^(-1)

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If A=[[1,2,2],[2,1,2],[2,2,1]] , verify that : A^2-4A-5I=O

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

A=[[1,2,2],[2,1,2],[2,2,1]] , then show that A^2-4A=5I_3

If A= [[1,2,2],[2,1,2],[2,2,1]] , find A^2-4A-5I=O

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If A=[(3,2),(2,1)] verify that A^2-4A-I=0 . Hence find A^(-1)