" 30.If "A=[[3,-5],[-4,2]]," find "A^(2)-5A-14I," where "I" is a unit matrix."

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If A= [[ 3,-5,],[-4,2,]] ,show that A^2-5A-14I=O, where I is a unit matrix of Oder 2.

If A = [[3,-5],[-4,2]] ,show that A^2 -5A-14I =0.

If A=[(3,-5),(-4, 2)] , then find A^2-5A-14 I . .

If A=[[3,-5-4,2]], then find A^(2)-5A-14I. Hence,obtain A^(3)

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

If A= '[[1,2,3],[3,-2,1], [4, 2, 1]] , then find A^2-23A-40 I where I is Identify Matrix.

If the matrix A=[[5,3],[12,7]] , then verify that A^2-12-I=O where I is a unit matrix.

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=[{:(,2,-1),(,-1, 3):}]" evaluate "A^2-3A+3I , where I is a unit matrix of order 2.

If A=[[1,-2],[5,6]],B=[[3,-1],[3,7]] ,Find AB-2I ,where I is unit martrix of order 2.