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Quiz on Discriminant 判別式：測驗
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
兩組對邊相等的四邊形
近似值：有效數字
長方體平面投影 (Codex版)
四邉形 (四年級) 教師版
畫出對稱圖形
Discover Resources
兩物體在時間 0 ~ 1 間，碰撞判斷
螢橋國中80209傅筱筑
Copy of 固定周界的長方形的面積變化
三位小數
求切线方程(改进)
Discover Topics
Trapezoid
Binomial Distribution
Piecewise Functions
Geometric Distribution
Confidence Interval