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chenweitao

  • 劉徽的「割圓術」的副本

    Activity

    chenweitao

  • 展開圓面積 (講義版)的副本

    Activity

    chenweitao

  • 圓周公式應用題2的副本

    Activity

    chenweitao

  • 以 Unit Circle 了解 Sine 的正/負的副本

    Activity

    chenweitao