Question

If E=[-1,0,1,2,3,4] and F=[3,4,5,6,7,8] what is E U F?

Answer 1

`E=\{-1,\ 0,\ 1,\ 2,\ 3,\ 4\}\\\\F=\{3,\ 4,\ 5,\ 6,\ 7,\ 8\}\\\\E\ \cup\ F=\{-1,\ 0,\ 1,\ 2,\ 3,\ 4,\ 5,\ 6,\ 7,\ 8\}`

All elements from set E and from the set F. The same elements are only once.