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sine graph (reduce to 1/2 and then translate leftward by 15 degree)
Author:
Queenie Chan
GeoGebra
New Resources
兩組對邊相等的四邊形
畫出對稱圖形
第八周作业
算柱 (兩位數)
拼砌四邊形
Discover Resources
Trigonometric Ratios: Cosine & Tangent 三角比：餘弦和正切
直方圖_Demo
transformation_translation
測試教案 80335 盧沛宏
长方形边线展开
Discover Topics
Derivative
Percentages
Linear Equations
Upper and Lower Sum or Riemann Sum
Algebra