Mathematics
Senior High
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数1です。
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私はa^2+b^2/abになって答えが合いませんでした。

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(与式)=a/b(a-b)+b/a(b-a)=a/b(a-b)-b/a(a-b)=a^2/ab(a-b)-b^2/ab(a-b)=(a+b)(a-b)/ab(a-b)=a+b/abとなります

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