Nick Halsey uploaded a new app: Epic Circle Trace 2 6 years, 10 months ago

A triangle, defined by three points that are located proportionally around a circle by functions of t, is traced as t varies from 0 to 2Π. What are the functions of t, f(t), g(t), and h(t), that define the points D, E, and F, respectively?

Hint: one of the functions is _(t) = t.