若x为任意实数,化简√x^2-2x+1

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若x为任意实数,化简√x^2-2x+1若x为任意实数,化简√x^2-2x+1若x为任意实数,化简√x^2-2x+1√(x²-2x+1)=√(x-1)²=│x-1│=﹛x-1x≥11

若x为任意实数,化简√x^2-2x+1
若x为任意实数,化简√x^2-2x+1

若x为任意实数,化简√x^2-2x+1
√(x²-2x+1)
=√(x-1)²
=│x-1│
=﹛x-1 x≥1
1-x x<1