If `A=[[-1,-2,-2],[2,1,-2],[2,-2,1]]` then show that the adjoint of A is `3A^(T)` .Find `A^(-1)`

If A=[[-1,-2,-2],[2,1,-2],[2,-2,1]], show that 3adjA=A^T.

If 3A=[[1,-2,2],[-2,1,2],[-2,-2,-1]] then show that A^(-1)=A'

If A=[(-1,-2,-2 ),(2, 1,-2),( 2,-2 ,1)] , show that a d j A=3A^T .

Find the adjoint of the matrix A=[(-1,-2,-2), (2 ,1,-2), (2,-2, 1)] and hence show that A(a d j\ A)=|A|\ I_3 .

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 3A-[[1,2,2],[2,1,-2],[x,2,y]] and "A^(T)A-AA^(T)-I , then xy is equal to

If B = [{:(3,2,0),(2,4,0),(1,1,0):}] , then what is adjoint of B equal to ?

Find the adjoint of the matrix: [(2,-4),(-1,2)]

The adjoint of matrix [(3,2),(-1,4)] is :

If A=[[7,-2],[-1,2],[5,3]] and B=[[-2,-1],[4,2],[-1,0]] then find AB^(T) and BA^(T)