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相反數
Author:
pingfeng.wu
Topic:
Fractions
國中數學7上：相反數
GeoGebra
New Resources
圓的基本性質
直線的斜率：水平變化 & 鉛垂變化
折扣
盈利與虧蝕
科赫雪花
Discover Resources
圓周率的應用 題B
geogebra
反射(鉛垂線、水平線及斜線) Reflection (vertical line, horizontal line and line)
小一
Trigonometric Ratios
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Derivative
Reflection
Histogram
Parallelogram
Cone