Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Let
f
(
x
)
=
∣
x
2
−
4
∣
f(x)=|x^{2}-4|
f
(
x
)
=
∣
x
2
−
4∣
. For which value(s) of
x
x
x
is
f
f
f
NOT differentiable? a)
x
=
0
x=0
x
=
0
only b)
x
=
2
x=2
x
=
2
only c)
x
=
−
2
and
x
=
2
x=-2 \text{ and } x=2
x
=
−
2
and
x
=
2
d)
f
f
f
is differentiable for all real numbers
Browse the problem library