MathDB
Problems
Contests
National and Regional Contests
USA Contests
USA - College-Hosted Events
Harvard-MIT Mathematics Tournament
2013 Harvard-MIT Mathematics Tournament
28
28
Part of
2013 Harvard-MIT Mathematics Tournament
Problems
(1)
2013 HMMT Guts #28: Sum of Sums of Series
Source:
3/26/2013
Let
z
0
+
z
1
+
z
2
+
⋯
z_0+z_1+z_2+\cdots
z
0
+
z
1
+
z
2
+
⋯
be an infinite complex geometric series such that
z
0
=
1
z_0=1
z
0
=
1
and
z
2013
=
1
201
3
2013
z_{2013}=\dfrac 1{2013^{2013}}
z
2013
=
201
3
2013
1
. Find the sum of all possible sums of this series.
HMMT
ratio
geometric series