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特別角的三角函數值(2)
Author:
藍邦偉 Blue
GeoGebra
New Resources
异形操场
第八周作业
第八周作业2
正方形雪花图案
百分數及其應用
Discover Resources
數學題目參考圖形
S4 Circle Theorems
Introduction to Trigonometry from a Unit Circle
Question 1
∆ABD 面積 = ?
Discover Topics
Congruence
Polynomial Functions
Surface
Square
Combinatorics