RUSTAM RAJABOVICH GADAYEV. PROOF OF SOME TRIGONOMETRIC IDENTITIES. Journal of Academic Research and Trends in Educational Sciences, [S. l.], v. 1, n. 7, p. 325–332, 2022. Disponível em: http://ijournal.uz/index.php/jartes/article/view/183. Acesso em: 6 may. 2024.