Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
For the function
f
(
x
)
=
x
3
f(x)=x^{3}
f
(
x
)
=
x
3
, explain in one sentence why
x
=
0
x=0
x
=
0
is a critical number but not a local extremum.
Browse the problem library