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Proof of Pythagoras Theorem(1) 畢氏定理的証明(1)
Author:
Alex CHIK
Topic:
Pythagoras or Pythagorean Theorem
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
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判斷球體
三位數除以一位數（一）
球體建築師
兩位數除以一位數（二）
畫出對稱圖形
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資料點 x1, x2, ..., xn
test03
三角恒等式證明
比例中的定值問題
正弦定理的副本
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Straight Lines
Parabola
Confidence Interval
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Integers