Find the union of the following sets, namely ${3 e, 2, -9, 2 e} \cup {3 e, 2, 2 e, -9}$.

import math

fst = set((3*math.e, 2, -9, 2*math.e,))
snd = set((3*math.e, 2, 2*math.e, -9,))
print(fst.union(snd))
