所屬主題: [初中數學] – Linear Equations in Two Unknowns 二元一次方程

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影片內容: 00:14 – Diophantus’ riddle 丟番圖的謎語 02:55 – illustrative example 1 例子 1 05:03 – illustrative example 2 例子 2 所屬主題: [初中數學] – Linear Equations in Two Unknowns 二元一次方程

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影片內容: 00:21 – inconsistent simultaneous linear equations 不一致的聯立線性方程 02:01 – simultaneous linear equations with infinitely many solutions 有無限個解的聯立線性方程 所屬主題: [初中數學] – Linear Equations in Two Unknowns 二元一次方程

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影片內容: 00:24 – method of substitution 代入法 05:03 – method of elimination 消去法 所屬主題: [初中數學] – Linear Equations in Two Unknowns 二元一次方程

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影片內容: 00:26 – what are simultaneous equations 甚麼是聯立方程 01:05 – ideas of graphical method 圖解法概念 02:39 – illustrative example 例子 04:44 – limitations of the graphical method 圖解法的局限 所屬主題: [初中數學] – Linear Equations in Two Unknowns 二元一次方程

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影片內容: 00:05 – what are linear equations in two unknowns 甚麼是二元一次方程 01:05 – relations between the two unknowns 兩個未知數的關係 02:09 – how to plot a linear equation in two unknowns on a graph 如何以圖像表示二元一次方程 所屬主題: [初中數學] – Linear Equations in Two Unknowns 二元一次方程

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影片內容: 01:31 – Diophantus 丟番圖 所屬主題: [初中數學] – Linear Equations in Two Unknowns 二元一次方程

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