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優良作品6
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
近似值：有效數字
sanjiaohanshu
【案例】2018年全国1卷理科12题
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兩直線夾角101.11.21
已知A(1,2)與B(3,4)為兩定點,P(x,y)為直線x+2y=3上一點,求當直線PA=直線PB時 , P的坐標?
CLOCK
rose
百分數應用題：比較兩數大小
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Volume
Quadratic Equations
Right Triangles
Constructions
Straight Lines