Question

The equation `costheta=1/2` from `0<=theta<2pi` has solutions `pi/3` and `(5pi)/3`. What is the general solution corresponding to `(5pi)/3`?

Answer 1

The cosine function has period `2pi`, therefore the general solution will be `theta = (5pi)/3 + 2pin`, where `n` is an integer.

Hopefully this helps!