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Equation of the tangent to 2 circles touching externally
Author:
jleung
GeoGebra
New Resources
圓周公式的應用
平行線的斜率
多邊形的面積
龙形曲线-分形龙2
直線的斜率：水平變化 & 鉛垂變化
Discover Resources
擲兩個硬幣的機率分布
ie 9
量度長度(厘米)
pyramid by Mr LO WY
一个函数的零点个数.许兴华数学
Discover Topics
Natural Numbers
Calculus
Scalene Triangles
Hypergeometric Distribution
Cube