Singapore Mathematical Olympiad (SMO) Open 2021 Solution Review

Discussion of the Singapore Mathematical Olympiad (SMO) 2021 Open Section, held on 7 Sept 2021. We went over the answers & solutions to all 25 problems. The complete set of problems can be found at http://www.realsutra.com/limjeck/SMO_.... For any enquiries, please contact me via Telegram (@waytan97) or email (fiboway@yahoo.com.sg). Disclaimer: This session is approved by the Singapore Mathematics Society (SMS), with the support of Maths Hub Enrichment Centre. However, it is not an official event conducted by either party.