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橢圓1-同心圓法
Author:
15黃瀚霆
GeoGebra
New Resources
祖冲之的期望：内棋与外棋
兩位數除以一位數（二）
圓的切線方程
斜率的值
垂直線的斜率
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挑战中考压轴题
歷屆考題
分數乘法_李樂雯
angle at centre vs angle at circumference
百分數、分數和小數互化
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Probability
Pythagoras or Pythagorean Theorem
Mode
Correlation
Prism