已知IX-2I<1,化简根号x^2-6X+9+1-X分之I1-xI I IX-2I<1,则-1<x-2<1 则1<x<3 根号x^2-6X+9+1-X分之I1-xI I =根号(x-3)?+1-x分之(x-1) =3-x+(-1) =3-x-1 =2-x</x<3 </x-2<1