If `{:A=[(1,0,0),(0,1,0),(a,b,-1)]:}`, then `A^2` is equal to

If A=[(1,0,0),(0,1,0),(1,b,-10] then A^2 is equal is (A) unit matrix (B) null matrix (C) A (D) -A

If A[(1, 0, 0),(x, 1, 0),(x, x, 1)] and I=[(1, 0, 0),(0,1,0),(0,0,1)] , then A^(3)-3A^(2)+3A is equal to

If A=[(1, 0,0),(0,1,0),(a,b,-1)] and I is the unit matrix of order 3, then A^(2)+2A^(4)+4A^(6) is equal to

If A=[{:(0,1),(1,0):}] then A^(2) is equal to

If A=[[1,0,0],[0,1,0],[a,b,-1]] , find A^2

A=[[0,1],[1,0]] ,then A^(2) is equal to