Question

How do you evaluate `sin ((25pi)/6)`?

Answer 1

`1/2`

Explanation:

notice that `(25 pi) / 6 = ((24 + 1) pi) / 6 = 4 pi + pi /6`

so you're just looking at `pi/6`. you can ignore the 2 full cycles of `2 pi`

`sin (pi / 6) = 1/2`