Question

How do you solve `cos (x) = 1/2` over the interval 0 to 2pi?

Answer 1

`x=pi/3`, and `x= (5pi)/3`

Explanation:

`cos x=1/2`

`x=cos^-1 (1/2)=pi/3, (5pi)/3`

have a nice day ....from the Philippines !!!