[" (i) [adin] " "[[1,2,1],[2,3,1],[1,1,5]]" vanify that "],[" (i) "adj(n-1)]

Let A = [[1,-2,1],[-2,3,1],[1,1,5]] Verify that [adj A]^-1 = adj (A^-1)

If A=[[1,2,3],[1,3,4],[1,4,3]] ,verify that A(adj.A)=(adj.A)=|A|.I

Let A=[{:(1,-2,1),(-2,3,1),(1,1,5):}] Verify that [adjA]^(-1)=adj(A^(-1))

Let A=[{:(1,-2,1),(-2,3,1),(1,1,5):}] . Verify that ltbtgt (i) [adjA]^(-1)=adj (A^(-1)) (ii) (A^(-1)^(-1)=A

If A=[[1,1,2],[1,2,2],[2,2,1]] verify that A(adj A) = (adj A)A = |A|I_(3) .

If A=[[1, 1],[ 1 , 2]] , verify the (adj A)^(-1) =adj(A^(-1))

[" (1) Find the adjoint of "A" ,where "A=[[1,-1,0],[2,3,-2],[2,0,1]]],[" Also verify that "A*(adj A)=|A|I_(3)" ."]

If A=[[1,2,1],[1,1,2],[2,2,1]] verify A(adj A)=(adj A)A=|A|I_(3) .

Find the adjoint of the matrix A=[[4,-2,-1],[1,1,-1],[-1,2,4]] and show that A(adj A)=|A|I