Алгебра - 4, лекция 7, А.Л.Городенцев.

New channel Видеозаписи Независимого Московского Университета: title sample judged 'whole' (This is a full recording archive of university-level math lectures, seminars, and courses from an independent math unive); passed a second screen for sellers/exam-prep/re-uploads; 1 of 3 sampled transcripts showed teaching, 0 not; every title checked strictly; oEmbed verified.