Sets Revision

What is the symbol for union?

• $\cup$

• $\cap$

• $\subset$

• $\subseteq$

What is the symbol for intersection?

• $\cup$

• $\cap$

• $\subset$

• $\subseteq$

How do you read this notation? A U B

• A union B

• A intersection B

• A is a subset of B

• A is a proper subset of B

How do you read this notation? X  $\cap$  Y ?

• X intersection Y

• X union Y

• X is a subset of Y

• X is a proper subset of Y

Based on the given set, what are the elements in set A only?

• { 1, 2, 3 }

• { 4, 5, 6 }

• { 7,8, 9 }

• { }

What are the elements in Both set A and set B? Or elements in set A that are also elements in set B?

• { 1, 2, 3 }

• { 4, 5, 6 }

• { 7, 8, 9 }

• { }

What are the elements in set B only?

• { }

• { 7, 8, 9 }

• { 1, 2, 3 }

• {4, 5, 6 }

Identify the shaded area...

• A

• B

• A'

• B'

Identify the shaded area...

• A

• B

• A'

• B'

Identify the shaded area...

• A∩B

• A∪B

• A'∩B'

• A'∪B'