Please turn on Javascript
Your browser either doesn't support Javascript, or you've turned it off.
To use Mentimeter, please make sure to turn Javascript on.
How do I enable Javascript?
$A = \{1, 2, 3, 4, 5\}, B= \{-1, 3, 4, 7\}, C = \{2, 3, 8, 9\}$. What is $$((A\cup B)\setminus C)\setminus B?$$ - Mentimeter