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sinx cosx關係
Author:
陳柄何
GeoGebra
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Drag that Point!
Bottema's Theorem
Angles and Intersecting Lines: Quick Investigation
Pelecoid
Play C3 E3 G3 C4_C4
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functionspreadsheet
linear functions_break even point
Net and Surface Area of Triangular Prism
Polar coordinates - Cosine and Sine of obtuse angles
im.g.1.17.2 B
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Rhombus
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