# math 12

posted by
**Tori**
.

Could you please show me how to solve this question.If 2 cos A-1=0, where 0< or = A < 2pi what is A equal to?

posted by
**Tori**
.

Could you please show me how to solve this question.If 2 cos A-1=0, where 0< or = A < 2pi what is A equal to?