Find `A^2-5A+6I`, if `A=[[2,0,1],[2,1,3],[1,-1,0]]`

Find A^2-5 A+6 I , if A=[[2, 0, 1],[ 2 ,1 , 3],[ 1, -1, 0]]

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

Find A^2-5A+6I if A=[(2,5,8),(6,0,5),(0,-2,0)]

Find the matrices A and B if 2A+3B=[[1,2,-1],[0,2,1],[1,2,4]] and A+2B=[[2,0,1],[1,1,2],[3,1,2]]

Find the adjoint of B= [[1,-1,2],[2,3,5],[-2,0,1]]

For the matrix A= [[1,1,1],[1,2,-3],[2,-1,3]] show that A^3-6A^2+5A+11I=0. Hence, find A^(-1)

IF A=[[2,4,3],[1,0,6],[0,-2,-3]] , Find A^T

IF A=[[2,4,3],[1,0,6],[0,-2,-3]] , Find 3A .

A=[[1,-3,1],[2,0,4],[1,2,-2]] Find abs[3A]

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]] .