For what values of `x:[[1, 2, 1]] [[1, 2, 0],[ 2, 0, 1],[ 1, 0, 2]][[0],[ 2],[ x]]=0 ? `

Find x , if [[x,-5,-1]] [[1, 0, 2],[ 0, 2, 1],[ 2, 0, 3]][[x],[ 4],[ 1]]=0

Show that i) [[5 , (-1)],[ 6, 7]][[2, 1],[ 3 ,4]] ne[[2 , 1 ],[3 , 4]][[5, (-1)],[ 6 ,7]] ii) [[1, 2 , 3],[ 0 , 1, 0],[ 1 , 1, 0]][[(-1), 1, 0],[ 0, (-1), 1],[ 2, 3, 4]] ne[[(-1), 1, 0],[ 0, (-1), 1],[ 2, 3, 4]] [[1 , 2, 3],[ 0, 1, 0],[ 1, 1, 0]] .

If A=[[1,-1,1],[2,-1,0],[1,0,0]] , Find A^2

Inverse of the matrix [[0,1,2],[0,1,1],[1,0,2]]

Find x and y if 2[[1,3],[0,x]]+[[y,0],[1,2]]=[[5,6],[1,8]]

If A=[[1,-1,1],[2,-1,0],[1,0,0]] , Show that A^2=A^-1

Let A=[[2,1,3],[4,1,0]] and B=[[1,-1],[0,2],[5,0]] Find AB

If [(1,0,0),(2,0,1),(1,0,2):}][(0),(2),(x):}] = 0 find the value of x.

Show that [[1,2,3],[0,1,0],[1,1,0]] [[-1,1,0],[0,-1,1],[2,3,4]] ne [[-1,1,0],[0,-1,1],[2,3,4]][[1,2,3],[0,1,0],[1,1,0]]