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x²+y²+z²的取值范围
Author:
孟宝兴
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
拼砌四邊形
【案例】2013年安徽高考15题
畫出對稱圖形
兩位數除以一位數（二）
Discover Resources
waaachen
Artificial Neural Network
chuan-eBook
立方體截痕
折线匀速动点工具
Discover Topics
Bar Chart or Bar Graph
Logarithmic Functions
Linear Programming or Linear Optimization
Similarity Transformation or Similarity
Upper and Lower Sum or Riemann Sum