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二次函数y=a(x-h)^2+k各参数性质
Author:
吕胜
GeoGebra
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兩位數除以一位數（一）
【案例】2013年安徽高考15题
第八周作业
球體建築師
異分母分數減法
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海市蜃樓現象
內輪差...
冰淇淋
圓面積示範
sin(x) 的函數圖形的副本
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Square
Upper and Lower Sum or Riemann Sum
Difference and Slope
Limits
Tree Diagrams