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Martin Ressaar
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martin.ressaar
GeoGebra
New Resources
Linear Systems + Relationships Between Coefficients and Solutions
函數的單調性
GGB is Awesome!
z`]]
兩位數的位值
Discover Resources
Geogebra Tutorial: Line Design Complete
SP-DSE-MATH-CP 1 #18(b)
Untitled
Matrices: 3-d Transformation
Covering a square with unit squares
Discover Topics
Parametric Curves
Cube
Special Points
Trigonometric Functions
Cone