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parabola, b varies, a, c fixed

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  • 擲兩個硬幣的機率分布
  • 三角形的构成 的複本
  • 畫三角形 題1b 的複本
  • 劉徽的「割圓術」的副本
  • 畫三角形 題1d 的複本

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  • Pythagorean Theorem Proof with Shearing
  • 三角函數的週期變化
  • 製作對稱圖形 level 2
  • cos(π/n)cos(2π/n)cos(3π/n) ... cos(nπ/n) = ?
  • 藝術著色的副本

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  • topic.pyramid.title
  • topic.limits.title
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