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Equation of the tangent to 2 circles touching externally
Author:
jleung
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數除以一位數（二）
柱體建築師
兩位數加法
球體建築師
Discover Resources
如何判斷球體
Scheimpflug image
四角柱(底面為可調整梯形)
Twghmkc_運動與我
谢氏地毯
coterminal angles
Discover Topics
Trigonometric Functions
Arithmetic Operations
Algebra
Tangent Function
Step Functions