Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Find the exact value by using a half-angle identity. cos 22.5°: - ; - ; ;
Right answer summary:
Question state: todo
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Find the exact value by using a half-angle identity. cos 22.5°: - ; - ; ;
Right answer summary:
Question state: todo