化简:((a-1)/(a-2))/((a²-2a+1)/(2a-4))

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化简:((a-1)/(a-2))/((a²-2a+1)/(2a-4))
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化简:((a-1)/(a-2))/((a²-2a+1)/(2a-4))
化简:((a-1)/(a-2))/((a²-2a+1)/(2a-4))

化简:((a-1)/(a-2))/((a²-2a+1)/(2a-4))
(a-1)/(a-2)÷(a²-2a+1)/(2a-4)
=(a-1)/(a-2)×2(a-2)/(a-1)²
=2/(a-1)

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