if , x2-2x+1=0, then find the value of x100+1/x100
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x2-2x+1=0
(x-1)2=0
x=1
now x100+1/x100
(1)100+1/(1)100
1+1/1=2/1=2 ans
(x-1)2=0
x=1
now x100+1/x100
(1)100+1/(1)100
1+1/1=2/1=2 ans
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