Liân-só lu̍t

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Liân-só lu̍t (Hàn-jī : 連鎖律, chain rule), sī the̍h lâi kiû ho̍k-ha̍p-hâm-sò͘ (複合函數) ê tō-sò͘ (導數) ê 1 ê bî-chek-hun hoat-chek.