Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
16. Find the radius and interval of convergence for the series
∑
n
=
0
∞
(
−
1
)
n
x
2
n
(
2
n
)
!
\sum_{n=0}^{\infty}(-1)^{n} \frac{x^{2 n}}{(2 n)!}
∑
n
=
0
∞
(
−
1
)
n
(
2
n
)!
x
2
n
.
Browse the problem library