If A=[\table x,1;1,0] and A^2 is the unit matrix, then the value of x^3+x-2 is equal to

KEAM 2011 Math Paper

Question : 106 of 120

Marks: +1, -0

If A=[

x	1
1	0

] and A2 is the unit matrix, then the value of x3+x−2 is equal to

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x2+1	x
x	1

x2+1	x
x	1