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ÅV ʼn ‘S 🆕
#171 [ŽÄ“c ãÄ‘¾]
‚O…|a+b|…|a|+|b|
ŒÌ‚É|a+b|^2…(|a|+|b|)^2‚Æ‚È‚é
(|a|+|b|)^2 -|a+b|^2
=2(|a||b|-ab)†0
“™†¬—§‚Íab†‚O

⏰:12/02/22 21:43 📱:P08A3 🆔:..aK1Ito


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