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" 12.If "A=[[1,2,2],[2,1,2],[2,2,1]]" th...

" 12.If "A=[[1,2,2],[2,1,2],[2,2,1]]" then show that "A^(2)-4A-5I=0" ."

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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]] then prove that A^2-4A-5I=0 .

(b) answer the following questions: 1. if A=[[1,2,2],[2,1,2],[2,2,1]] , then show that A^2-4A-5I_3=0

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=O .

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

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):}] , show that A^2 -4A -5I =0