Using Set Notation 2
Maths: Edexcel GCSE Higher, topic 5.2.3
Using Set Notation 2
Definitions
- is the universal set. It represents all numbers in the question
- is the complement. It means "everything that is not in A" and can be applied to any section
Example 1
- = {1,5,8} and = {2,3,9}, Given that is made up of and , find .
- Here, is simply the numbers that are in either or .
- These can be found and represented as {1,2,3,5,8,9}
Example 2
- Given = {1,3,4,7,8} and = {1,7,8}, find
- Here, represents the numbers that are in , but not .
- These can be found and represented as {3,4}