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" 4.If "A=[[1,2,2],[2,1,2],[2,2,1]]" the...

" 4.If "A=[[1,2,2],[2,1,2],[2,2,1]]" then "A^(3)-4A^(2)-6A=

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A=[{:(1,2,2),(2,1,2),(2,2,1):}] , then A^(3) - 4A^(2) -6A is equal to

If A = [[2,-1,1],[-1,2,-1],[1,-1,2]] , Verify that A^3-6A^2+9A-4I=O and hence find A^-1 .

If A=[[2,-1, 1],[-1 ,2,-1],[ 1, 1, 2]] .Verify that A^3-6A^2+9A-4I=0 and hence find A^(-1) .

If A=[{:(2,-1,1),(-1,2,-1),(1,-1,2):}] verify that A^(3)-6A^(2)+9A-4I=0 and hence find A^(-1) .

Find the rank of matrix : A= [[1,2,-2,3],[2,5,-4,6],[-1,-3,2,-2],[2,4,-1,6]]

If A= {:[( 2,-1,1),(-1,2,-1),(1,-1,2) ]:} Verify that A^(3) -6A^(2) +9A -4I=O and hence find A^(-1)

If A= {:[( 2,-1,1),(-1,2,-1),(1,-1,2) ]:} Verify that A^(3) -6A^(2) +9A -4I=O and hence find A^(-1)

(b) Find the rank of the matrix A= [[1,2,1,2],[1,3,2,2],[2,4,3,4],[3,7,4,6]]