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凹面镜及凸面镜成像
Author:
ng jun kai
,
Tom Walsh
Move the tip of the Object arrow or the point labeled focus. Move the arrow to the right side of the mirror to get a convex mirror.
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Flip 9 Coins
探究長方形對角線上的正方形數目
Flip 4 Coins
International Day of Mathematics 2025
רישום חופשי
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Shaded Percentage Grid
Question #2
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Grenzwert einer Folge
Skew lines - angle
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Histogram
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