Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
(iv)
F
=
{
x
:
x
∈
N
and
x
is a divisor of
18
}
F = \{x : x \in \mathbb{N} \text{ and } x \text{ is a divisor of } 18\}
F
=
{
x
:
x
∈
N
and
x
is a divisor of
18
}
If
U
=
{
1
,
2
,
3
,
…
,
12
}
U = \{1, 2, 3, \dots, 12\}
U
=
{
1
,
2
,
3
,
…
,
12
}
,
A
=
{
x
∣
2
x
+
3
≤
18
}
A = \{x \mid 2x + 3 \le 18\}
A
=
{
x
∣
2
x
+
3
≤
18
}
and
B
=
{
x
∣
x
2
≤
40
}
B = \{x \mid x^2 \le 40\}
B
=
{
x
∣
x
2
≤
40
}
; write A and B in the roster form.
Browse the problem library