Find the union of the following sets, namely ${-9, 2 \pi, -7, 7.83, -2} \cup {7.83, -2, -10, -7, \pi}$.
Answer:
${-10, -9, -7, -2, \pi, 2 \pi, 7.83}$
{'source': 'AMPS', 'file': 'amps/mathematica/counting_and_statistics/set_union/15802.txt'}