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ทำไมจำนวนลบคูณจำนวนลบผลลัพท์เป็นจำนวนบวก ?
Author:
KruPongsak Wuttisant _TH
GeoGebra
New Resources
apec
Creating a navigation bar to show steps for geometric constructions
SetAxesRatio 1-1 and Set dimensions
Vector Function (2)
Joke : give a phone number for a math problem !
Discover Resources
Straight Line Graphs
PacMaze Robert Nguyen
Alternate Exterior Angles Measures
day 65
Congruent Segment Construction