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数学
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代数1
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函数与集合
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Intro to Sequences: Patterns and Formulas
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求等差数列
3
等比数列
4
等差数列
5
周期
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函数图像
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正比vs反比
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函数与集合
解方程式
集合
分数、百分比&比例
Intro to Functions and Graphs
线性函数
函数图像
序列
正比vs反比
图像的模式与趋势
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