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当1<x<3时,化简x-2/Ix-3I+Ix-1I

题目详情
当1<x<3时,化简x-2/Ix-3I+Ix-1I
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答案和解析
当1<x<3时,化简x-2/Ix-3I+Ix-1I
x-2/3-x+x-1=(x-2)(x-1)+(3-x)/(x-1)(3-x)
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