ο κύκλος [math](c): (x-xo)^2+(y-yo)^2=ρ^2[/math] και μία εφαπτόμενή του
Θάσος
12 απριλίου 2008
sonom
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- Target Group (Age)
- 15 – 18
- Language
- Greek / Ελληνικά
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