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20190530 與平行線有關的角
Author:
Hui Sir
GeoGebra
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兩位數除以一位數(二)
兩位數除以一位數(一)
球體建築師
拼砌四邊形
【案例】2018年全国1卷理科12题
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整數÷整數_工作紙(一)_題2
a sin(bx+c) +d
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5,求 ad - bc 最大值?
觀察軌跡求面積
test1
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Isosceles Triangles
Arithmetic
Reflection
Boxplot
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