Uma reflexão sobre as funções senoidais e algumas aplicações

Abstract

This work is based on showing the mathematics student, especially the one who focuses on learning about sinusoidal functions, the importance of content in high school, as well as some applications in everyday life. For this, we initially approach basic trigonometry topics, then we analyze the sine and cosine in the trigonometric cycle, which was previously known and used only in triangles. We made a detailed study of the arcs in the cycle, using the symmetries in the Cartesian plane, then we talk about the reduction to the first quadrant, of the arcs and until we reach the periodic functions. We perceive what the real constants produce graphically in the sinusoidal function curve and finally show the applications of these sinusoidal functions in our daily lives.