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切线定义3
Author:
罗庆杰
GeoGebra
New Resources
垂直線的斜率
正方形雪花图案
祖冲之的期望：内棋与外棋
科氏力 (Coriolis Force)
直線的斜率
Discover Resources
盒子的體積
Demo
F5__二元一次不等式
三角形的三线
圆的面积展开的副本
Discover Topics
Linear Programming or Linear Optimization
Rational Numbers
Orthocenter
Linear Regression
Angles