化简:a²-a﹣²/a²-2+a﹣²
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化简:a²-a﹣²/a²-2+a﹣²
化简:a²-a﹣²/a²-2+a﹣²
化简:a²-a﹣²/a²-2+a﹣²
(a²-a﹣²)/(a²-2+a﹣²)
=(a+1/a)(a-1/a)/(a-1/a)²
=(a+1/a)/(a-1/a)
=[(a²+1)/a]/[(a²-1)/a]
=(a²+1)/(a²-1)