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K1+k2
Author:
PAYIZ
Topic:
Circle
,
Difference and Slope
,
Symmetry
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
Discover Resources
調整頂點位置,對函數是的影響
柯西不等式 (2)
比較角的大小3
拋物線2--焦點法
圓周公式應用題2的副本
Discover Topics
Linear Programming or Linear Optimization
Intersection
Special Points
Cosine
Pyramid