Тысячеугольник 2.0 | Ботай со мной #065 | Борис Трушин |

Is there a countable dense set of points on a circle of diameter 1 such that the pairwise distances between them are rational? #БатайСоМной #065 In this video we will talk about: geometry trigonometry complex numbers binomial theorem number theory FB group:   / mathpuz   How to support the channel:    • Как помочь развитию канала | трушин ответи...   One-time donation (Yandex.Money): https://money.yandex.ru/to/4100110176... Regular donation (Patreon):   / trushinbv   Online courses in mathematics with Boris Trushin: 9th grade. Preparation for the OGE: http://trushinbv.ru/oge9 10th grade. Preparation for the Unified State Exam: http://trushinbv.ru/ege10 11th grade. Preparation for the Unified State Exam (tasks 1-12): http://trushinbv.ru/ege11b 11th grade. Preparation for the Unified State Exam (tasks 13-19): http://trushinbv.ru/ege11c 11th grade. Preparation for the Phystech Olympiad: http://trushinbv.ru/fizteh11 Other Foxford courses: http://trushinbv.ru/courses Foxford tutors: http://trushinbv.ru/coach Personal website: http://TrushinBV.ru Unified State Exam and Basic State Exam in Mathematics | Boris Trushin: https://vk.com/ege_trushin TrushinBV.ru website group: https://vk.com/trushinbvru Personal page: https://vk.com/trushinbv Website group:   / trushinbv   Personal page:   / boris.trushin   Instagram:   / trushinbv   YouTube channel:    / trushinbv