SETS AND SUBSETS

Front

What is a set?

Back

A set is a collection of distinct objects, considered as an object in its own right.

Front

What is roster notation?

Back

Roster notation is a way of specifying a set by listing its elements between curly braces, e.g., A = {1, 2, 3}.

Front

What is a subset?

Back

A subset is a set where all elements are also contained in another set.

Front

What is the universal set?

Back

The universal set is the set that contains all possible elements for a particular discussion or problem.

Front

What does A' represent?

Back

A' (A complement) represents all elements in the universal set that are not in set A.

Front

What is the difference between finite and infinite sets?

Back

A finite set has a limited number of elements, while an infinite set has no limit to the number of elements.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

How do you determine if a set is unique?

Back

A set is unique if it contains no repeated elements.

Front

What is the notation for the number of elements in a set?

Back

The notation n(A) represents the number of elements in set A.

Front

If A = {2, 4, 6}, what is n(A)?

Back

n(A) = 3, because there are three elements in set A.