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二次函數
Author:
Terry Chau
Topic:
Quadratic Functions
GeoGebra
New Resources
拼砌四邊形
錐體建築師
兩位數加法
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
線性規劃(半平面)
HW question locus 6
圓的外切圓
謝爾賓斯基三角形
圓周角與圓心角之度數關係臆測（圓周角的一邊通過圓心）
Discover Topics
Upper and Lower Sum or Riemann Sum
Rotation
Square
Random Variables
Trigonometric Functions