14 questions
What does this symbol ( ∪ ) represent in set theory?
Union
Intersection
Disjointed
Subset
Find n(A) when
A = {14, 16, 18, 20, 22, 24}
6
14
24
2
If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?
{3, 5, 7}
{2, 3, 5, 7}
{2, 3, 5, 7, 9}
{1, 2, 3, 5, 7, 9}