Find the difference between two sets, namely ${-9.2, -7, 6} \setminus {-5, 1, -7, -9.2, -\frac{3}{\sqrt{\pi }}}$.

import math

fst = set((-9.2, -7, 6,))
snd = set((-5, 1, -7, -9.2, -(3/(math.sqrt(math.pi))),))
print(fst - snd)
