2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138613A systematic study of the trigonometric equation A tan a + B sin b = C, where A, B and C^2 are rational numbers. The special case tan Pi/11 + 4 sin 3 Pi/11 = sqrt[11] appears in the classical literature.7 pagesNumber Theory11B99text