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过圆上一点作切线，三步
Author:
u.jianwang
New Resources
雙曲線諸元
迭代2
指数函数的副本
幂函数的副本
NestedSquare_spreadsheet
Discover Resources
glt-c05-06 正六角錐旋轉
ma_test
ACT01B Relationship between Centre and Chord
rectangle
內心
Discover Topics
Hyperbola
Optimization Problems
Vectors
Parallelogram
Derivative
