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-1/8 ≤ cosα cosβ cosγ ≤ 1
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
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球体的体积推导
【案例】圆柱体内放置一个大球六个小球
画直线等分三角形的面积
第八周作业
找出對稱軸
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Quiz on Factorization of Quadratic Polynomials (Table Method) 因式分解一元二次多項式(表格法)：測驗
題 1
Ex5D#2
轨迹
Light reflected in hyperbola
Discover Topics
Difference and Slope
Intersection
Congruence
Reflection
Incircle or Inscribed Circle