" If "A=([3,1],[-1,2]),I=([1,0],[0,1])" and "O=([0,0],[0,0])," show that "A^(2)-5A+7I=0." Hence find "A^(-1)" ."

If A=[3112], show that A^(2)-5A+7I=0 Hence find A^(-1) .

If A=[[3,1-1,2]],I=[[1,00,1]] and O=[[0,00,0]], show that A^(2)-5A+7I=0 Hence find A^(-1)

If A = ((3,1),(-1,2)), I = ((1,0),(0,1)) and O = ((0,0),(0,0)) show that, A^(2) - 5A + 7I = O . Hence find A^(-1) .

If A = [[3,1],[-1,2]] ,show that A^2-5A + 7I=0 Hence, find A^(-1)

If A=([2,-1],[1,3]) then show that A^2-5A+7I_2=0 hence find A^(-1)

If A=[(3, 1),( 1, 2)] , show that A^2-5A+5I=0 . Hence, find A^(-1) .

If A=[[3,1-1,2]], show that A^(2)-5A+7I=0

If A= [[3,1] , [-1,2]] then show that A^2 - 5A+7I =0 Hence find A^(-1)

If A=[[3, 1],[-1, 2]] , show that A^2-5A+7I=0