A study on the behavior of algebraic operations of trigonometric functions Gelar Salman, Denny Ivanal Hakim, Jalina Widjaja
Institut Teknologi Bandung
Abstract
Trigonometric functions are introduced in high school by the analysis of their graphs. Several applications of trigonometric functions are given as motivation for students to learn these concepts. For instances, trigonometric functions in Fourier series can be used as an approximation to other functions. Therefore, the study on the behavior of algebraic operations of trigonometric functions is important. This study is carried out in two method, namely using the GeoGebra application and analyzing the operations on trigonometric functions. In particular, we consider the change in period and amplitude of these functions.
