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Pellova posloupnost
作者：
Martin Vinkler
GeoGebra
https://en.wikipedia.org/wiki/Pell_number
最新資源
Solving 2x2 and 3x3 Systems Using Cramer's Rule
Tanzanian Ngoma - Model 2
Identifying Sine, Cosine, Tangent Ratios in Right Triangles (Quick)
apec
רישום חופשי
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Pyramid Passing Through 3
Estimating Angles on a Clock
Hinged Dissection Trapezoid-Trapezoid
Função Afim
SquareOne Puzzle
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直角三角形