Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
The elements of a set are always placed in: |
Curly brackets |
|
|
The symbol ...... Stands for an element of |
'E' shape |
|
|
The symbol...stands for not an element of |
'E' shape with a line through it |
|
|
The number of elements in a set is detonated by |
# eg. Q= {8,9,10,11}, then #Q = 4 |
|
|
How many ways of describing the elements of a set |
2 |
|
|
Name two ways of describing the elements of a set |
1. List method, 2. Rule method |
|
|
List method |
All elements are listed inside curly brackets. Eg {2,4,6,8} |
|
|
Is the order you list the elements important? |
No (although it's easier to do so) |
|
|
How many times can an element appear in a set? |
Once |
|
|
Rule method |
The elements of the set are described using words. Eg. {even numbers between 1 and 11} |
|
|
Equal sets |
Two sets are said to be equal if they have the same elements. For example the following sets are equal A = {1,4,9,16} |
|
|
If A and B are equal sets how do we write it? |
A=B |
|
|
How do we write it if A and B are not equal? |
Equal sign with line through it |
|
|
What's a set with no elements called |
Null set |
|
|
How do we write a null set |
{ } or Ø |
