Solve sin(θ) = x in the range a ≤ θ ≤ b
Mathematica, 60 bytes
NumberForm[t/.NSolve[Sin[t/180Pi]==#&amp;&amp;#2&lt;=t&lt;=#3,{t}],{9,3}]&amp;

input

[0, -1080, 1080]

output

{-1080.000,-900.000,-720.000,-540.000,-360.000,-180.000,0.000,180.000,360.000,540.000,720.000,900.000,1080.000}