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用和或差的平方做因式分解
Author:
鍾文欽
GeoGebra
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四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數(一)
拼砌四邊形
兩位數除以一位數(一)
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曲線下面積
EX3.18
同心圓
圓周_心算題02
【案例】圆柱体内放置一个大球六个小球
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Definite Integral
Numbers
Incircle or Inscribed Circle
Logic
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