求化简求过程求结果

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求化简求过程求结果

求化简求过程求结果
求化简求过程求结果

求化简求过程求结果
(x²-2x+1)/(x²-1)/(1-3/(x+1))
=(x-1)²/[(x-1)(x+1)]/[(x-2)/(x+1)]
=(x-1)/(x+1)*(x+1)/(x-2)
=(x-1)/(x-2)
=(√2-1)/(√2-2)
=(√2-1)/[√2(1-√2)]
=-√2
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