Mathematics
Senior High
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l,m,nを自然数とする。1/l+1/m+1/n=1を満たす(l,m,n)をすべて求めよ。
という問題で、l,m,nに勝手に大小関係を仮定して、そのあと並び替えるという方法っていいですか？
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ありがとうございました！