If `A=[(2,-1),(-1,2)]` and i is the unit matrix of order 2, then `A^2` is equal to (A) `4A-3I` (B) `3A-4I` (C) `A-I` (D) `A+I`

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=[[2,-1-1,2]] and I is the identity matrix of order 2, then show that A^(2)=4a-3I Hence find A^(-1).

If A=[[2,-1],[-1, 2]] and I is the identity matrix of order 2, then show that A^2=4A-3I Hence find A^(-1) .

If A=[{:(4,2),(-1,1):}] and I is the 2xx2 unit matrix, find (A-2I)(A-3I)

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 a)7 A^(8) b)7 A^(7) c)8I d)6I

If A is square matrix such that A^2=A , then (I+A)^3-7A is equal to (A) A (B) I-A (C) I (D) 3A

If A=({:(2,-1),(-1,2):}) " and " A^(2)-4A+3I=0 where I is the unit matrix of order 2, then find A^(-1) .

If A is a square matrix such that A^2=A , then (I+A)^3-7 A is equal to A) A B) I-A C) I D) 3A