Find the union of the following sets, namely ${2 \sqrt{5}, \frac{10}{e}, -\frac{18}{\pi }, -\frac{9}{2}, -2 \sqrt{5}, 6, 8, 1, -4, -6, \frac{17}{e}} \cup {5, -2, 1, -4, -2 \sqrt{5}, 8, -9, \frac{17}{e}, 2 \sqrt{5}, 2}$.
Answer:
${-9, -6, -\frac{18}{\pi }, -\frac{9}{2}, -2 \sqrt{5}, -4, -2, 1, 2, \frac{10}{e}, 2 \sqrt{5}, 5, 6, \frac{17}{e}, 8}$
{'source': 'AMPS', 'file': 'amps/mathematica/counting_and_statistics/set_union/10635.txt'}