Correct Solutions by,
- Toshihiro Shimizu Kawasaki, Japan
- Mümtaz Ulaş Keskin Erciyes University
- Vedat Deveci Istanbul
- Mustafa Burak Topal Istanbul
- Choi Min Kyu South Korea
- Magnus Jakobson Lund, Sweden
- Roger Bengtsson Lund, Sweden
Solution: http://www.fen.bilkent.edu.tr/~cvmath/Soru/2309a.pdf