Set of Vowels. (Use roster notation)
V={a, e, i, o, u}?
Find AnB
A = {1, 2, 3, 6, 9, 18}
B = {1, 2, 3, 4, 5}
AnB={1,2,3}?
What does this graph represent?
B and C
B∩C
There is an ancient invention still used today in some parts of the world which allows people to see through walls. What is it?
Windows
What do we call the objects inside a set?
Element
The meaning of
AsubeB
A is a subset of B
Find AuB
A= {even numbers up to 20}
B= {multiples of 5 up to 20}
AuB= {0, 2, 4, 5, 6, 8, 10, 12, 14, 15, 16, 18, 20}
What does this graph represent?
A or B
A∪B
I have forests but no trees.
I have lakes but no water.
I have roads but no cars.
What Am I?
A map
What symbol is used to show an element belongs to a set?
∈
The meaning of
emptyset
The empty or null set.
Find the elements that are not in A and they are not in B
U= {2,3,6,8,9,11,14,15,20,22,25,30}
A= {2, 6, 8, 14, 20}
B={ 2, 3, 11, 15, 20, 25}
{9, 22, 30}
Draw a Venn diagram to represent the relationship between the sets X = {1, 6, 9} and Y = {1, 3, 5, 6, 8, 9}
When I’m first said,
I’m quite mysterious,
But when I’m explained,
I’m nothing serious.
What am I?
A riddle
The empty set and {0} are the same.
False
The set of factors of 38
{1, 2, 19, 38}
Find B - A (the elements that are in B, but not in A)
A= {2, 7, 8, 10, 17}
B= {14, 10, 2, 19, 20}
B - A= {14, 19, 20}?
The sketch of
(A ∩ B) ′
Answer will be drawn on the board.
Where on Earth do the winds always blow from the South?
North Pole
What do we call two sets that have no common elements?
disjoint sets
F={people who play football}
B={people who play basketball}
S={people who play soccer}
Write in words the meaning of
(F ∩ S) ∪ B
Amount of people who play football and soccer combined with people who play Basketball?
If A = {1, 3, 7, 9, 10}, B = {2, 5, 7, 8, 9, 10}
Find: (A ∪ B) ∩ (A ∩ B)
(A ∪ B) ∩ (A ∩ B)= {7,9,10}?
The sketch of
A ∩ (B ∪ C) ′
A boy is walking down the road with a doctor. While the boy is the doctor’s son, the doctor is not the boy’s father. Then who is the doctor?
The boy's mother.
If A = {1, 2, 3} and B = {1, 2}, what is B in relation to A?
B is a proper subset of A or B is a subset of A