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M6_Ch9.2 三角恆等式
Author:
Franky_0219
Topic:
Trigonometric Functions
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近似值：有效數字
美國國旗 (Codex 版)
算柱 (兩位數)
判斷球體
直角坐標平面上的旋轉變換
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任意四邊形１比３
三角形外心
gjc090c21內切圓的圓心
二次函數圖像
手拉手模型
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Frequency Distribution
Root
Tangent Function