MATH 140 In Class Exercise 4 Sets and Subsets
Names_____________________________________________________
1. The set 
has two subsets, 
. Which one is a
proper subset of A?_____
2. Now let 
. List all the subsets
of B. _______________________________
How many are there? _______
3. Let 
. List the subsets of
C.____________________________________
_______________________________
How many are there? _________
How many subsets of C are there with exactly 2 elements? ___________
How many subsets of C are there that contain the element c? ________
How many subsets of C are there that do not contain the element c? __________
4. Let 
. List all the subsets of D.
__________________________________
_______________________________________________________
How many are there? ______
How many are there with exactly 2 elements? ____________
How many subsets of D are there that contain the element d? ________
How many subsets of D are there that do not contain the element d? __________
5. Fill in the table:
|
n(A) |
# of subsets of A |
|
1 |
|
|
2 |
|
|
3 |
|
|
4 |
|
6. Using the table above how many subsets will a set with 5 elements have? __________