−10cos(5−x10)-10 \cos \left(5-\frac{x}{10}\right)−10cos(5−10x)
10cos(5−x10)10 \cos \left(5-\frac{x}{10}\right)10cos(5−10x)
−110cos(5−x10)-\frac{1}{10} \cos \left(5-\frac{x}{10}\right)−101cos(5−10x)
110cos(5−x10)\frac{1}{10} \cos \left(5-\frac{x}{10}\right)101cos(5−10x)