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求 a + b 的最大值？
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
球體建築師
拼砌四邊形
【案例】2018年全国1卷理科12题
四邊形的特性
Discover Resources
貝茲曲線
對稱和變換
Arcs and Angles at Centre/ Circumference 弧、圓心角與圓周角
二元线性规划的图解法(习题3)
蝴蝶定理动态演示
Discover Topics
Combinatorics
Fractal Geometry
Complex Numbers
Tangent Line or Tangent
Geometric Mean