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Mathematics
Problem
Let
U
=
{
whole numbers between 10 and 20 inclusive
}
U = \{\text{whole numbers between 10 and 20 inclusive}\}
U
=
{
whole numbers between 10 and 20 inclusive
}
,
A
=
{
factors of 120
}
A = \{\text{factors of 120}\}
A
=
{
factors of 120
}
, and
B
=
{
multiples of 3
}
B = \{\text{multiples of 3}\}
B
=
{
multiples of 3
}
. List the elements of: a.
A
A
A
b.
B
B
B
c.
A
′
A'
A
′
d.
B
′
B'
B
′
e.
A
∩
B
A \cap B
A
∩
B
f.
A
∪
B
A \cup B
A
∪
B
g.
A
′
∩
B
A' \cap B
A
′
∩
B
h.
A
′
∪
B
A' \cup B
A
′
∪
B
i.
A
∩
B
′
A \cap B'
A
∩
B
′
j.
A
∪
B
′
A \cup B'
A
∪
B
′
k.
A
′
∩
B
′
A' \cap B'
A
′
∩
B
′
l.
A
′
∪
B
′
A' \cup B'
A
′
∪
B
′
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