syakewarabi on Scratch

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syakewarabi

Scratcher Joined 10 months ago Macedonia, The Former Yugoslav Republic of

About me

x+y=1
(1/xy)+1/y=7
y=-x+1
{1/x(-x+1)}+1/-x+1=7
1+x=7×x(-x+1)
7x^2-6x+1=0
解の公式より、x=(3±√2)/7
(3±√2)/7+y=1
y=(4∓√2)/7
Q.E.D

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たまに見に来るので何かあればお気軽に♪

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コメントできるもんならやってみな☆

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