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两角和的正弦公式
Author:
zhang hongwei
Topic:
Trigonometric Functions
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
四邊形的特性
拼砌四邊形
錐體建築師
Discover Resources
binary and hexadecimal
regular tetrahedron (CH4)
平行線的斜率_hui sir
複合棒形圖
圈柱(可調整內半徑、外半徑，柱高)
Discover Topics
Surface
Perimeter
Translation
Logarithmic Functions
Prism