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解題策略7：例題1
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3-2-9 三次函數的一次近似
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高中數學（一）
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3-2-8 二次函數的一次近似
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3-2-5 二次函數圖形
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3-2-4 二次函數圖形的平移
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3-2-7 三次函數圖形的平移
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3-2-6 三次函數圖形
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3-2-3 單項二次函數圖形
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3-2-2 一次函數圖形的平移
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3-2-1 一次函數圖形
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2-3-1 圓標準式
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