the angle to be sin = -1/2
11π/6
7π/6
the angle to be sin = - sqrt(3)/2
5π/3
4π/3
the angle to be sin = -sqrt(2)/2
5π/4
7π/4
the angle to be sin = 1/2
π/6
5π/6
the angle to be sin = sqrt(3)/2
π/3
2π/3
the angle to be sin = sqrt(2)/2
π/4
3π/4
the angle to be sin = 1
π/2
the angle to be sin = -1
3π/2
The angle to be sin = 0
11π/6
7π/6