Question

gráfico da função y=1-2sen x/2

Answer 1

$f(x)=1-2 \sin (\frac{x}{2})=y\\ \\dom(f)=\{(-\frac{\pi}{2},\frac{\pi}{2})|x\in \mathbb{R}\}\\\\f:(-\frac{\pi}{2},\frac{\pi}{2}) \longmapsto \mathbb{R}$