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Ebbinghaus illusion
Author:
acchu
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認識半徑
未命名
同分母加法50
y=a(x-h)²+k的副本
認識直徑
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Is this a prism 3
複合圖形體積(三角形與四邊形結合)
二次函數圖形(1)
gslsj 橫向的三角數列
多物件逐一動畫
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Algebra
Rational Numbers
Complex Numbers
Right Triangles
Triangles
