Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Let
f
(
x
)
=
arctan
(
2
x
)
f(x)=\arctan(2x)
f
(
x
)
=
arctan
(
2
x
)
, and let
f
(
n
)
(
0
)
f^{(n)}(0)
f
(
n
)
(
0
)
denote the
n
n
n
th derivative of
f
f
f
at
x
=
0
x=0
x
=
0
. What is the value of
f
(
4
)
(
0
)
f^{(4)}(0)
f
(
4
)
(
0
)
? a)
48
48
48
b)
0
0
0
c)
−
48
-48
−
48
d)
8
8
8
Browse the problem library