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一元二次方程式
Author:
李正仁
Topic:
Mathematics
GeoGebra
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【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
找出對稱軸
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昨天各種筆的銷售情況
曲柄搖桿
过圆上一点作切线，三步
intersection: surface-surface, curve-curve
Question 3
Discover Topics
Trigonometric Functions
Sequences and Series
Arithmetic
Continuity
Sine