Set: pp::colors
  Set: pp::unicode
  Assumed: x
sin x
sin (x + -1 * (π / 2))
(sin x) / (sin (x + -1 * (π / 2)))
(sin (x + -1 * (π / 2))) / (sin x)
1 / (sin (x + -1 * (π / 2)))
1 / (sin x)