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正弦型
Author:
李擎阳
GeoGebra
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第八周作业
第三周作业效果演示
中华人民共和国国旗
盈利與虧蝕
GeoGebra数学资源(4-8年级)
Discover Resources
平行綫的斜率
愛心曲線
垂直3
銳角三角:tan
无理数指数幂
Discover Topics
General Quadrilateral
Optimization Problems
Scalene Triangles
Addition
Parallelogram