Final answer:
The coterminal angle between 0 and 2π can be defined as an equivalent angle. Coterminal angles are angles that have the same initial and terminal sides, but differ by an integer multiple of 2π.
Step-by-step explanation:
The coterminal angle between 0 and 2π can be defined as an equivalent angle.
Coterminal angles are angles that have the same initial and terminal sides, but differ by an integer multiple of 2π. So, a coterminal angle to an angle of 0 would be 2π, and a coterminal angle to an angle of 2π would be 4π.