MULLO CÓNDOR , Kevin Santiago. From Formula to Problem Solving: Teaching Trigonometry in Preparation for University Admission. MENTOR revista de investigación educativa y deportiva , [S. l.], v. 5, n. 15, p. 01–11, 2026. DOI: 10.56200/mentor.v5i15.13612. Disponível em: https://revistamentor.ec/index.php/mentor/article/view/13612. Acesso em: 16 sep. 2026.