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参考にどうぞ

頑張る人

ありがとうございます!!
お陰様で理解出来ました🙇‍♀️

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(x+1/x)^2=x^2+2×x×1/x+1/x^2  
    =x^2+2+1/x^2 

頑張る人

ありがとうございます🙇‍♀️いつも助かります🙏✨

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