Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Groups
Community ▾
A
A
Which of these is the empty set? | StemPy Lab
Quizzes
/
Which of these is the empty set?
Mathematics
Easy
High School (11–12)
Functions and Calculus › Relations and Functions
Created by
StemPy Lab
Which of these is the empty set?
{
x
:
x
is even and prime
}
\{x : x \text{ is even and prime}\}
{
x
:
x
is even and prime
}
{
x
:
x
2
=
9
}
\{x : x^2 = 9\}
{
x
:
x
2
=
9
}
{
0
}
\{0\}
{
0
}
{
x
:
x
∈
N
,
3
<
x
<
4
}
\{x : x \in \mathbb{N},\ 3 < x < 4\}
{
x
:
x
∈
N
,
3
<
x
<
4
}
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← Apply f(x) = 3x + 1 twice, starting from 1. Where do you end?
Replace x by -x in x³ + x. What does the result tell you about the function? →
More on
Functions and Calculus › Relations and Functions
Discussion (0)
Log in
to join the discussion.
Loading…
Find the range of f(x) = (3x - 2)/(x + 1).
Hard
Are f(x) = x²/x and g(x) = x equal functions?
Hard
Find the domain and the range of f(x) = √(25 - x²).
Medium
Find the domain of f(x) = (√(x + 3))/(x² - 1).
Easy
All problems on this topic →
Created by StemPy LabCreated by StemPy Lab