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三角函數
Author:
denisjelly
Topic:
Trigonometric Functions
立永等等等等等
GeoGebra
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【案例】2018年全国1卷理科12题
找出對稱軸
判斷球體
兩組對邊相等和有直角的四邊形
拼砌四邊形
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tccs work
y=mx+k
正弦定理的验证
祖暅之《綴術》：「緣冪勢既同，則積不容異。」
S3 Ex4.3 Q02(3D圖)
Choikou 5階
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Mode
Secant Line or Secant
Diagrams
Vectors 3D (Three-Dimensional)
Difference and Slope