Find the union of the following sets, namely ${3, 4 \sqrt{5}, 4.994} \cup {-\sqrt{5}, 4.994, 3}$.

import math

fst = set((3, 4*math.sqrt(5), 4.994,))
snd = set((-math.sqrt(5), 4.994, 3,))
print(fst.union(snd))
