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正弦的概念
Author:
現代中學數學 Modern Secondary Mathematics
Topic:
Triangles
,
Trigonometry
GeoGebra
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Constructing the Copy of an Angle + Angles Activities
Snake year !
Midpoint & Endpoint Illustrator (V2)
Comparing Two Quantities by Percentage
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SSA Special Case
En femkantblomst.
Complex numbers
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Differential Equation
Quadrilaterals
Isosceles Triangles
Fractions
Similar Triangles