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  5. 変形の工程をお願いします
Mathematics
Senior High
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合格くん
合格くん

変形の工程をお願いします

n-1 -3 3. n (答) an 17 -1 n II

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✨ Best Answer ✨

Suya
Suya

分子・分母に3^(n−1)をかけてます。

合格くん
合格くん

理解出来ました。ありがとうございます！

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