46. Union Intersection complement and disjoint

Front

What does the symbol ∩ represent?

Back

Intersection 'and'.

Front

What does the symbol ∪ represent?

Back

Union 'or'.

Front

If A={Martín, Danna} and B={Laura, Tomás, Jhon}, what is A U B?

Back

A U B={Martín, Danna, Laura, Tomás, Jhon}.

Front

Let H ={ 1,3,5 } and M={ 2,3,5,7 }. What is H∩M?

Back

H∩M={3, 5}.

Front

If U (the universal set) = {1, 3, 5, 7, 9, 11, 13, 15, 17} and W = {5, 7, 9, 11}, what is W'?

Back

W'={1, 3, 13, 15, 17}.

Front

What is the definition of a universal set?

Back

A universal set is the set that contains all possible elements for a particular discussion.

Front

What is the complement of a set?

Back

The complement of a set A consists of all elements in the universal set that are not in A.

Front

What does it mean for two sets to be disjoint?

Back

Two sets are disjoint if they have no elements in common.

Front

If A={1, 2, 3} and B={3, 4, 5}, what is A ∩ B?

Back

A ∩ B={3}.

Front

If A={x | x is an even number} and B={x | x is a prime number}, what is A ∩ B?

Back

A ∩ B={2}.