If `A=[[4,2,1],[-1,3,2],[0,-3,1]]`, then `|A|=?`

If A=[[3,-3,4],[2,-3,4],[0,-1,1]] , then

If A=[[1,-2,3],[0,-1,4],[-2,2,1]], then find |A| .

If A=|[1,0,1],[0,1,2],[0,0,4]| then |3A|

If A = [[-1, 2 ,3],[-1, 0, 2],[1, -3, 1]] and B = [[4,5,6],[-1, 0, 1], [2,1,2]], find 4A-3B

If A=[[1,2,3] , [-1,0,2] , [-2,-3,1]], B=[[4,5,1] , [-1,0,3] , [2,1,2]], C=[[-1,-2,1] , [-1,2,3] , [-1,-2,2]] then A-2B+3C=

If A=[(3,-3,4),(2,-3,4),(0,-1,1)] , then :

If A=[[1, -1, 2], [0, 2, -3], [3, -2, 4]] , then |A^(-1)|=

If A=[(3,-3,4),(2,-3,4),(0,-1,1)] , then A^(-1)=

If A=[[0,1,3],[1,2,x],[2,3,1]] and A^(-1)=[[(1)/(2),-4,(5)/(2)],[-(1)/(2),3,-(3)/(2)],[(1)/(2),y,(1)/(2)]] . Find x,y