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GeoGebra
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Отражение Алисы в Мыльном Пузыре
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miravicci
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The derivative of a polynomial function
Fibre Optic
Total internal Reflection
Refraction in a glass block
Superposition of waves
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problem_curve
Translation-2
STEP
SchlittenFertig
Claudiu - 2parabolas rotated