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駐波:相向而行的兩行進波線性疊加而成
Author:
ipc Wang
y=sin(3x-2t) y=sin(3x+2t)
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
三位數除以一位數(一)
柱體建築師
三位數除以一位數(二)
算柱 (兩位數)
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畢氏定理動態證明(歐基里得,平形四邊形等面積,應用polyline)
[問題] 線在面上
量角器2
Copy of 固定面積的圖形的周界變化
P6 圓周03D
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Multiplication
Translation
Isosceles Triangles
Geometric Transformations
Probability