Azul, Hayden U. creator author. text ph Manila, Philippines Hydn Publishing. monographic eng 174 pages : illustration(black and white) ; 19 cm. Contents: Trigonometric functions — Logarithms — Antilogarithms — Logarithms of trigonometric functions — Proportional part 1 for seconds — Formulas. Adult adult Hayden U. Azul. Lauron, Rodello General Education General Education : Mathematics Text in English Trigonometric Functions Logarithms Antilogarithms 2903000769107 [paperback] University of Cebu-Banilad 260611 20260611140034.0