Find the union of the following sets, namely ${-1, \frac{3}{\sqrt{2}}, -8, -7.5} \cup {\frac{3}{\sqrt{2}}, -1, 1, -4.7}$.

import math

fst = set((-1, (3/(math.sqrt(2))), -8, -7.5,))
snd = set(((3/(math.sqrt(2))), -1, 1, -4.7,))
print(fst.union(snd))
