Practice problem
What is {1,2,3}∪{2,3,4,5,6}\{1,2,3\}\cup\{2,3,4,5,6\}{1,2,3}∪{2,3,4,5,6}?
{1,2,3,4,5,6}\{1,2,3,4,5,6\}{1,2,3,4,5,6}
{2,3}\{2,3\}{2,3}
{1,2,2,3,3,4,5,6}\{1,2,2,3,3,4,5,6\}{1,2,2,3,3,4,5,6}
{1,4,5,6}\{1,4,5,6\}{1,4,5,6}
Type a concept, like “slope” or “photosynthesis”.
