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作者：
Snazzy
GeoGebra
最新資源
Trefoil Knot
Angles of Intersecting Lines
Level Curves
Graphical solution of ax² + bx + c = k
bewijs stelling van Pythagoras
探索資源
Exponential and Logs
undefined
Start, Perpendicular to line from point not on line
area of semicircle with slider (3 May 2020)
探索主題
微積分
Sequences and Series
三角形
黎曼和（Riemann Sum）
三角學