8. If A = Prove that A2-5A + 7I = 0.

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

Given A = [(3,2,0),(1,4,0),(0,0,5)] Prove that A^2 -7A +10I_3 = 0

If A=[{:(3,1),(-1,2):}] then prove that A^(2)-5A+7I=O

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

If A=[3112], 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

Consider the matrices A=[[2,3],[4,5]] Prove that A^2-7A-2I=0

If A=[[3,1],[-1,2]] prove that A^2-5A+7I=O ,where I is unit matrix of order 2.