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NCERT 9 年級數學課本
NCERT 9 年級數學課本
第 1 章 - 數系
第 2 章 - 多項式
第 3 章 - 座標幾何
第 4 章 - 兩變數線性方程
第 5 章 - 歐幾里德幾何學導論
第 6 章 - 直線和角
第 7 章 - 三角形
第 8 章 - 四邊形
第 9 章 - 平行四邊形和三角形的面積
第 10 章 - 圓
第 11 章 - 作圖
第 12 章 - 希羅公式
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第 14 章 - 統計
第 15 章 - 機率

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