Practice problem
What is the intersection of Q\mathbb{Q}Q (the set of rational numbers) and {π,2.5,7.8,10}\{\pi,2.5,7.8,10\}{π,2.5,7.8,10}?
{π,2.5,7.8,10}\{\pi,2.5,7.8,10\}{π,2.5,7.8,10}
{2.5,7.8}\{2.5,7.8\}{2.5,7.8}
{2.5,7.8,10}\{2.5,7.8,10\}{2.5,7.8,10}
{10}\{10\}{10}
Type a concept, like “slope” or “photosynthesis”.
