Sets

Question 1

What are sets?

Answer 1

Sets - Unordered collection of distinct objects

******No order between the elements + No repeated elements********

• Requires a name with a capital letter
• items should be in between {}
• Can be finite or infinite

Fruits = {apple, orange, grapes}

Question 2

What is the notation for saying that an element is part of a set?

Answer 2

Question 3

What is the notatin for saying that an element is not part of a set?

Answer 3

Question 4

What is the notation for the cardinality of a set?

Answer 4

Question 5

How to represent that two is an element of another set

Answer 5

Question 6

give an example of list notation

Answer 6

Question 7

give an example of visual representation

Answer 7

Question 8

what is builder notation

Answer 8

Question 9

give the builder notation for ‘all students in the room’

Answer 9

Question 10

write builder notation for a set which contains m and n where they are all integers excluding 0

Answer 10

Question 11

what are the different number types we have to know

Answer 11

Question 12

how do you represent an empty set

Answer 12

Question 13

what are the cardinalities of empty sets

Answer 13

Question 14

how do you visually represent a subset

Answer 14

Question 15

give the notation when A is a subset of B when A contains all elements of B

Answer 15

Question 16

give notation for when A is not an element of B

Answer 16

Question 17

what are disjointed sets

Answer 17

Question 18

what is the intersection of sets

Answer 18

Question 19

what is the union of sets

Answer 19

Question 20

what is the difference of sets

Answer 20