Verify `A (a d j A) = (a d j A) A = |A|I`
`[(1,-1,2),(3,0,-2),(1,0,3)]`

Verify A (a d j A) = (a d j A) A = |A|I for [(2 ,3),(-4,-6)]

Verify A(adj A) = (adj A).A = |A|.I : [[1,-1,2],[3,0,-2],[1,0,3]]

Verify A(adj.A)=(adj.A)A=|A|I : [{:(1,-1,2),(3,0,-2),(1,0,3):}]

Verify : A(adj.A)=(adj.A)A=|A|I when : A=[{:(1,-1,2),(3,0,-2),(1,0,3):}]

Verify A" "(a d j" "A)" "=" "(a d j" "A)" "A" "=" "|A|"I" [2 3-4-6]

Find A(a d j\ A) for the matrix A=[[1,-2 ,3],[ 0, 2,-1],[-4 ,5, 2]] .

Find the matrix A such that |A|=2\ a n d\ a d j(A)=[(2, 2, 0),( 2, 5, 1),( 0, 1, 1)]

If A=[1-3 2 0] , write a d j\ A .

If A=[[cosalpha,-sinalpha,0],[sinalpha,cosalpha,0],[ 0, 0, 1]] , find a d j\ A and verify that A(a d j\ A)=(a d j\ A)A=|A|I_3 .

If a d j\ A=[(2, 3),(4,-1)] and a d j\ B=[(1,-2),(-3, 1)] , find a d j\ A Bdot